Polyurethane-based binder and the making process
There are disclosed a polyurethane-based binder as well as the process for making theneof. The binder is a prepolymer having terminal isocyanate groups, which contained 5-25% of said iso...
2
85102289
Epoxy resin insulation material
With new kind of solidation system, the property of the epoxy resin material is improved. Before its solidation, its viscosity is lower. It can be used in the mfg. of electric apparatus ...
3
03800871
Process for purification of crude polyether and adsorbent
A process for purification of crude polyether, characterized by bringing a crude polyether obtained by addition polymerization of an active hydrogen compound with an alkylene oxide in th...
Polyorganosiloxane compositions for the treatment of substrates
The invention relates to polyorganosiloxane compositions containing structurally different amino polysiloxane and/or ammonium polysiloxane compounds a1) and a2), methods for the producti...
High stability polyhydric silicon emulsion and preparing method
Polyhydric silicon oil emulsion,whose molecular weight is about 100-200 thousand and the particle size is up to 1 um,can be prepared by the following process:the neutral hydrolysate of d...
12
85100433
New process of hydrolyzing organochlorosilanes
This invention is charaterized by using a static mixer as hydrolyzing reactor, satd. HCe as circulating liq., and carrying out hydrolyzation under pressure. All the HCi produced is recov...
13
85101494
Formulaion of epoxy resin
The formulation contains the following compositions: the admixture (A) composed of 100 weight parts of polybasic carboxylic anhydride and 10-70 weight parts of compound whose molecule co...
14
85101389
Preparing poly (arylene ketones)
In preparing poly (arylene ketones), especially poly (arylene ether ketones) in which all connections being made in para-positions, by Friedel-Crafts polymerization reaction in the prese...
15
85101150
Fluorine-containing polyamide-acid derivative and polyimide
Prepn. of polyimide with excellent heat and humidity resisting properties is from polyamide-acid, of which the repetitive structural unit contains fully fluorinated alkylene group.
16
85101757
Process for prepn. of fluor containing polyethers
This process is the ring opening polymerization of 2,2,3,3-tetrafloro epoxypropane in the presence of a polymerization initiator. The polyethers obtained can be easily put to further flu...
Continuous process for synthesizing polycarbonate in one-step
This is a succeeding innovation of the patented "one-step polycarbonate synthesis method" (registration number CN85 103769). So the previous formulation and principal technology are reta...
Process for manufacture of high modulus and strength silastic
ABSTRACT :The present invention relatesw to a process for manufacture of a new vinysiloxane rubber by compolymerizing newly-synthesized intermediate heptamethyl tri(vinyl silicon)ethyl s...
27
85102769
One-step synthesis of polycarbonic ester
Adding catalyst beforehand, saturated organic solution of phosgene reacts with bisphenol in alkaline soln. and condensation-polymerization of resultant takes place synchronically on the ...
Epoxy resin composite
The invention relates to a composite which is composed of following components: (1) epoxy resin containing at least two epoxy groups in the molecule, (2) ootential curing system consisti...
30
85103438
Process for mfr. of room temp. vulcanized silicone rubber
Block hexandiol ethyl silicate is used as a novel nodal tear resistant cross-linking agent for treating silicon diotide to solve the contradiction between fluidity of rubber and high str...
31
85103446
Method for producing high-temp.-resisting silicone resins
The raw materials are trifunctional and bifunctional silanes. They are mixed in the molar ratio of 1:0.2~1.1. Through the procedures of hydrolysis, washing, solvent-removal etc., the res...
32
85103119
Process for preparation of polytetramethylene apipamide
Process for the preparation of polytramethylene adipamide in which a prepolymer-containing liquid reaction mixture is prepared by heating the salt of 1,4 diaminobutane and adipic acid in...
Process for producing peat humic acid-diamine resin
The process comprises reacting peat humic acid with orgamic matter such as diamines, resulting first in a black monomer of humic acid-diamine, and eventually a thermosetting resin of hum...
35
85102685
Method for preparing antislip lacquer
The lacquer contains convention printing ink binders, suitably solution, dye, pigment, antioxidant additive as passivation additive and condensate comprising 1.5~2 equivalent polymeric f...
Aromatic polyimide composition
The composition of present invention is used for manufacture of processing articles, such as film, or varnish, lacquer or adhesives, comprising high-molecular-weight aromatic polyimide r...
Polyurethane prepolymers with high storage stability
They are used as components of polyurethane paints. This paint consists of (1) polyethers with 2 or 3 functionalities and hydroxyl value of 230-280 and 460-520, (2) toluene diis-cyanate ...
41
85104738
Polyurethane prepolymers and elastomers
Reactive, 100 percent solids, segmented, phase-separating polyurethane prepolymers are provided, which are the reaction products of: a polyol having average molecular weight from about 6...
Solid polymerization process
Polymerization of polyesters to form macromolecules is usually conducted in solid state and in the presence of an inert gas stream. This stream can eliminate volatile produces in reactio...
46
85105698
Solid phase polymerization
The polyester resin with low oxygen permeability is adapted for packaging materials such as bottles, pots, packaging films and similar materials. The invention discloses a method for syn...
47
85105624
Synthesis of carboxyl terminated vinyl liquid polymers
This invention provides a method for copolymerizing saturated hydroxyl-terminated liquid polyethers and the reaction of this copolymerized ether with dibasic anhydride in presence of var...
48
85107196
Hydrated catalyst complex and process using the same
In the process, the gas-phase hydrated catalyst compex is used to favour the introduction of water into the system, to promote the condensation polymerization of the prepolymer top seale...
49
85106299
Depolymerization of polyester scraps
Diethyl p-phthalate and ethylene glycol are added in the reactor containing molten BHT. When depolymerization is accomplished dihydroxy-ethyl-p-phthalate and/or oligomers of BHT are/is o...
Composition of heat-resistant polymer resin
This invention involves a composition of polymer resin produced from (A) and (B). (A) is at least one kind of compounds which contains more than one groups of 1-oxa-3-aza-1,2,3,4-tetrahy...
52
85107413
Composition of pressure-sensitive adhesive
This invention relates to a polymer in whose molecule at least an active silicane group as shown by the formula (I) is contained. This composition has an excellent heat-resistance and a ...
53
85107222
Epoxy resin composition An epoxy resin composition comprises an epoxy resin having an epoxy equivalent of at most 200; a condensation mixture(A) of a polybasic carboxylic acid anhydride, a bisphenol A having the...
Technique for coating high-temp. and corrosion resistant paints
The polyethersulfone (PES) coatings have following features: 1/. they can be used for good below 260 deg.C and the properties of resistance to 50 percent caustic alkali and strong or wea...
Process for reducing the total halide content of an epoxy resin The total halide content of epoxy resins is reduced by heating a resin containing halide dissolved in a solvent mixture containing at least one ketone, at least one aromatic hydrocarbon a...
58
85108361
Resin for moltening mold castings
The invention relates to a resin used for moltening mold of titanium alloy, which is produced from furfurl alcohol JBF, oxalic acid and caustic soda and has low viscosity, 10-20 centi-po...
Preparation of polysuccinic alcohol
In the presence of epoxy-chloropropane, either with or without water, at a temp. below 10 deg.C, pref. 0-5 deg.C, tetrahydrofuran is polymerized by using boron trifluoride as initiator. ...
62
85109304
Polyalkylene polyamines via vapor phase reaction This invention pertains to an improved process for preparing noncyclic polyalkylene polyamine compounds in high selectivity by reacting ammonia, an alkanolamine and an alkylene amine in t...
Synthelization of linear macromolecular polybenzewne thioether
Using hexapposphamine as solvant, sodium phosphate as assistant, in the presence of the third component, hydrogen sulfide and p-dichlorobenzene (raw material) can be polymerized into lin...
65
85109549
Process for the production of polyurethane resin A polyurethane with good stability against heat and light is obtained by using: a) an ultraviolet absorber; and b) a tertiary phosphite represented by general formula (I) wherein R1, R2 a...
66
86100176
Soft copolyetheramides techniques at low-temp. Novel, homogeneous and flexible block copolyetheramides, having a melting point of at least 150 DEG C., a glass transition temperature not exceeding -5 DEG C. and a melt viscosity of at l...
Synthesis of polyester of polyhydric alcohol
The mixed dicarboxylic acid recovered from the waste liquor discharged from the procedure in production of adipic acid, the dross (G ester) or para-methyl benzoic acid discharged from th...
69
86100766
Method for producing nontoxic quenching agent
It uses the oxane as the main raw material to synthetize nontoxic quenching agent. The whole technological process includes deeply refining the raw material and selecting appropriate pol...
70
86101389
Preparation and application of composite of conductive polymers
The material of this invention is composed of electric conducting polymers with large conjugated structure of counter ions, electrolyte which can furnish counter anion, and electric insu...
71
86101649
Process of preparing formed products by fasculation polymer Molding or fiber grade condensation polymer having copolymerized therein a total of from 1.0 to about 5,000 ppm of at least one methine moiety having one or more methine units defined as ...
Composition epoxy resin A novel epoxy resin composition is prepared by first mixing 100 parts by weight of an epoxy resin having an epoxy equivalent of no more than 200 with 0.5-10 parts by weight of a phenoxy r...
74
86102386
Method for imparing releasability to a substrate surface The invention provides a method for imparting releasability to the surface of a plastic film or paper by coating the surface with an organopolysiloxane composition followed by curing, in ...
Thermoplastic acrylic acid polyester resin
This invention offers the method of producing a kind of thermoplastic polyester resin. In preparation for the invented resin, first maleic anhydride, rosin and ethylene glycol react in e...
77
86102891
Solidable component A curable organic solvent-soluble polyimide compsn. contains polymerizable initiator and is useful for forming heat resistant printable films. The compsn. comprises (a) curable polyimide ...
78
86102650
Epoxy resin pre-composition An epoxy resin composition consisting essentially of an epoxy resin having an epoxy equivalent of 200 or lower, a mixture of polybasic carboxylic acid anhydride and aromatic ester as a cu...
Epoxy resin compositions A pre-catalyzed epoxy resin composition comprising: a) a polyepoxide, and b) a catalytic amount of a catalyst selected from the group consisting of substance, wherein R is a hydrocarbyl o...
81
86104852
Process for mfg. modified polyolefins using hydrolysable silane
A kind of modified polyolefin, consisting of 1-99% polyolefin, its mixed polymers or mixtures and 99-1% poly vinyl alcohol or its mixed polymer, is obtained by combination partially or s...
Method of stimulating animal growing Biologically-active copolymers and compounds that can be safely used to cause the thymus of an animal or human to increase in size, thereby replenishing the T-lymphocyte population. When ...
84
86104826
Modified polyester fiber and its fabrication
A modified polyester fiber, dyable under normal atmosphere and low temperature by cation dyestuff, is fabricated by adding diformic acid-diformic ester sodium benzene sulfonate to prime ...
85
86104757
Adhesive polymerization of polypropene chloride-polysilicone
The feature of this invention is that 2-phenyl silican methylacrylate and polypropene oxidate are polymerized by joining free branched-chain groups. The course of reaction is short, tech...
86
86105440
Clear polyvinyl chloride article and composition Polyvinyl chloride articles such as bottles and films are provided which have a high degree of clarity, low haze, low blush, excellent color stability and which do not impart taste and od...
87
86105004
Copolyester A melt-processable copolyester is composed of the following structural units (I), (II) and (III) and/or (IV) as main structural components. The proportion of unit (I) is 2.5 to 35 mole %,...
88
86107083
Novel copolymers of sulphur dioxide and ethene Novel copolymers of sulphur dioxide with ethene and, optionally also carbon monoxide and/or one or more olefinically unsaturated hydrocarbons with less than 20 carbon atoms (A), which cop...
89
86107562
Composition for gumming mineral fibres An aqueous resin composition usable in sizing compositions for the treatment of mineral fibers is disclosed. This aqueous composition comprises a resin obtained by the condensation, in a ...
Synthetic method of phenolic resin
This method adopts a semi-closed cycle which consists of condensation and condensation polymerization. The intermediate prod. formal is firstly obtained by the continuous condensation of...
Process for devolatilizing molten oxymethylene polymer A process is provided for removing volatile materials from a molten oxymethylene polymer, according to which the molten polymer is passed through a rotating disk polymer processor having ...
Catalyst for preparation of polyurethane and using method A polyurethane is prepared with use of a catalyst comprising a compound having the formula in which n is an integer of 2 to 12, A is a hydrogen or a group of -CH2CHRCH2NH2 and R is hdyrog...
Removal of catalyst remnants from ethene/CO copolymers Process for removing the catalyst remnants from polymers of carbon monoxide with ethene and optionally also one or more other olefinically unsaturated hydrocarbons, which polymers have be...