Acrylic acid series copolymer resin type sand adhesive
A novel casting adhesive consists of acrylic acid series multicomponent copolymer resin and water. Acrylic acid series multicomponent coplymer resin can be polymerzied by binary, tribasi...
2
91108755
Utilization of catalyst in polymerization of olefin hydrocarbon
The invention discloses a polymerization process for olefine hydrocarbon, which includes the promotion of contact of mono-1-olefine hydrocarbon with catalyst and catalyst aid under polym...
3
85102259
Prepn. of block polymers
The SDS is block polymerized in the presence of n-butyl lithium or sec-butyl lithium as initiator and cyclohexane as solvent. In order to reduce the permanent set of SDS, during the firs...
Irradiative degradation process of polyvinylbutyral
In order to get a series of polyvinylbutyrals with a wide range of mol. wt., it is necessary to prepare a solid high mol. wt. polyvinylbutyral by condensation of polyvinylalcohol dissolv...
6
85100953
Gas phase graft polymerization method
In a gas phase graft polymerization method wherein at least one radical polymerizable monomer is graft-polymerized onto a polymer by feeding the monomer in the gaseous state onto the pol...
The method for preparing X-ray proof plexiglass
The key to this methed involves, starting from considerations on the structure of the macromolecule itself and the addition of compounding ingredients, choosing monowers and additives wh...
9
85101103
Process for preparing copolymer
The copolymerization of L-methyl styrene and acrylonitrile as well as at least one of the following compounds, such as styrene, Cl-substitued-styrene, para-methyl-styrene, tertbutyl-styr...
Catalyst system used for alkene poly-and copolymerization
The present invention relates to a catalyst system consisting of (A).(B) and (C), wherein (A) is a solid material precipitated by adding titanium tetrahalide and assist-precipitant to so...
12
85101407
Olefin polymerization catalyst
The main catalyst containing Mgcl2/Ticl4/electron donor is mixed with mineral oil (e.g.5-25%), to prepare free-flowable, high activity olefin polymerization catalyst component. Due to t...
13
85101209
Alumina treated by silicon and/or fluorine
A special composition which surface is siliconized can be further carried on fluorination, phosphoration or phosphination. The compositions are esp. used as carrier of chromium catalyst ...
Method for one or more monomer(s) containing emulsion treatment
The method is for removing the residual monomer from a polymeric emulsion by subjecting the emulsion to such pressure and temperature conditons that the ambient vapour pressure is less t...
16
85101441
Olefin polymerization process
The catalyst contains (a) catalyst body, (b) sub-catalyst and (c) selectivity controlling agent, where (a) is a solid component, comprising Mgcl2, Ticl4 and electron donor (b) is trialky...
Display tube
The present invention relates to a cathod-ray tube or fluorescent displaying tube which is composed of a layer of film covered on fluorescent coating. By a printing process, the said fil...
Stretched polypropylene film
A stretched polypropylene film with excellent transparency is produced by stretching along at least one direction of polypropylene resin sheet. This sheet contains 0.05ppm-1.0% (by wt.) ...
Process for purifying rubber
This invention relates to the purification of ethylene-diene rubbers by extraction. The extractant should have critical temp. less than 435 deg.K. The extracting temperature should be hi...
25
85102156
Method for mfg. combined super-absorbent material by radiation
The high water-absorption materials are made from traditional chemical raw materials with a chemical methods. Those processes are complex and costlier. In this invention, a new irradiati...
Process for the production of propene copolymers A process for producing a propylene copolymer has improved transparency and rigidity, which comprises carrying out (A) the polymerization of a vinyl cycloalkane having at least 6 carbon a...
Iron catalyst for the polymerization of conjugated dienes
The new type of iron catalyst of this invention is characterized by containing no electron donor but using chloride as a third component. Iron compound, alkylaluminium and chloride are t...
31
85102368
Synthesis of polymer coating material for leather
The material of this invention is synthesized with monomers such as acrylic ester, chlorobutadiene, acrylonitrile, styrene and acrylic acid, etc. Under a set of definite conditions. The ...
Ethylene polymerization catalyst
A kind of ethylene polymerization catalyst,which is composed of A and B-a kind of alkyl aluminium,is high titanium load carriage.component A is a solid containing magnesium and titanium....
34
85102955
Process for producting an olefin copolymer rubber
Ethylene, at least one of a-olefine and non-conjugated diene can polymerize to produce olefine copolymer rubber in the presence of poor solvent and organic metal compound (composition 1)...
35
85103033
Method of synthesizing rubber from peat humic acid
This invention relates to a method of synthesis for producing rubber from peat humic acid and butadiene-styrene copalymer. Under specific reaction conditions, with different ratios of ra...
Craze-resistant transparent resinous copolymers
The present invention relates to resinous multimode block copolymers, produced by copolymerizing e.g.butadiene with styrene, which are craze-resistant(microcrack), transparent and substa...
38
90107010
Composition for Zn-Al-P-Si-oxide molecular sieve
The present invention discloses a crystalline molecular sieve contg. ZnO2, AlO2, SiO2 and PO2 tetrahedron group with 3-dimensional microporous frame structure. The emprical formula of th...
39
85103617
Process for removel of slarry
The advanced process includes that the polymer slurry diluted by a special diluent is pumped from a high pressure zone to a lower pressure zone e.g. ambient. During the process the dilue...
40
85102972
Continuous polymerization of propene
The catalyst carried by MgCl2 carrier and pretreated by ethylaluminum chloride can be used in the title method. It is introduced into the polymerization reactor together with gaseous raw...
Preparation of starch based super efficient water absorbent
When hydrolyzed starch is graft copolymerized with acrylonitrile, or, when it is grafted to acrylic acid and neutralijed with alkali, the product is a super efficient water absorbent. Th...
43
85103368
Process for production of paste-forming vinyl chloride polymers
A paste-forming vinyl chloride polymers are manufactured by a interrupted polymerization in the presence of a conventional predisperse liquid. such as emulsifying agent, disperse acid an...
44
85103996
Novel polymer and cured product of the same
A polymer which is prepared by polymerizing at least one ethylenically unsaturated monomer in the presence of an organic polymer having at least one reactive silicone group in a molecule...
45
94195142
Polymerization of ethylenic chloride with inorganic salt
Process for preparing a polymer or copolymer from polymerizable monomers by suspension polymerization whereby foam formation during the removal of residual monomers is inhibited, which p...
46
93101835
Desolventizing method of elastomer solution
This invention refers to a process for desolventizing a solution which contains at least 8 percent (by wt.) of elastomeric polymer. Firstly, the heated fluid and elastomeric polymer solu...
Acrylic acid powder coatings and production method thereof
The prepn method adopts as solution polymerization process. Only three kinds of conventional monomer are used, copolymerized into an acrylic resin containing epoxy group, then several fi...
50
94118302
Method for preparation of wax with high ester value
The preparation method uses the unsaturated carboxylic acid or its acid anhydride and to make esterification with monobasic alcohol in the presence of acidic catalyst. Then the obtained ...
Propylene elastomer The invention relates to has the following properties: has the following properties: (1) it comprises units derived from propylene in an amount of 50-95mol% and units derived from 1-buten...
One-step method producing technology for foamed polystyrene
The present invention discloses a one-step production technology of expandable polystyrene. Said invention uses inorganic dispersing agent, optimized dispersion system and initiator syst...
Urea and urethane monomers for contact lens materials Urea- and urethane-containing monomers selected from compounds of general formula (I) or (II), wherein each X is independently -O- or -NH-, for contact lens materials are disclosed.
Flash gas sampling for polymerization reactions
In a polymerization method using hig-pressure flash evaporation, said flash evaporation is used for separating unreacted monomer contained in the effluent liquid flow from the reactor, a...
59
94194650
Gels of organic peroxides The present invention relates to a gel comprising A) a solution of at least one organic peroxide essentially solubilized in a phlegmatizer, B) at least one cellulose ester as thickening a...
Three constituents copolymer and eye lens made from it
The present invention relates to a copolymer consisting of three construction units in which first construction unit is 60-80% (w/w), second construction unit is 10-30% (w/w) and third c...
Metallocene compound and its use as catalyst component The present invention relates to a multinuclear metallocene compound of the formula I, where M1 is a tetravalent metal, L1 are, independently of one another, identical or different and ar...
Method of preparing carbamate-functional polymer A method of preparing a carbamate-functional acrylic polymer is described, comprising the steps of:(A)preparing a mixture comprising:(1)one or more acrylic monomers comprising hydroxy-fun...
68
95197442
Polymers based on block copolymers The invention relates to crosslinked polymers, which are polymerisation products of a polymerisable mixture that comprises the following components: a) a macromer of formula C wherein Mac...
69
95197183
Siloxane-containing networks The invention concerns a cross-linked polymer built up from a polymerization product of a highly unsaturated polymer (a) and a polysiloxane (b) with terminal or pendentive hydrosilane gro...
70
95113147
Gas distributor plate for gas phase polymerization apparatus A gas distributor plate provided in a fluidized bed polymerization vessel which effects the gas phase polymerization of olefins, the gas distributor plate exhibiting excellent action for ...
71
95121716
Organoaluminoxy product, catalyst systems, preparation, and use In accordance with the present invention, there is provided an organoaluminoxy product prepared by the process comprising reacting an organoaluminoxane with an ene-ol compound. In another...
72
95119491
Process for production of cycloolefin random copolymer There is provided a process for the production of a cycloolefin copolymer which comprises copolymerizing an alpha -olefin having 2 or more carbon atoms and a specific cycloolefin in the p...
Agricultural covering material An agricultural covering material made of a fluorine-containing polymer film having a dynamic viscoelastic modulus of from 1 to 70 kg/mm2, a tensile strength of from 1.5 to 5.0 kg/mm2, a ...
Metallocene catalyst for polymerizing olefine
A metallocene catalyst for polymerizing olefine features that the reaction resultants of the indene, fluorene or its substituted derivative, cyclopentadiene or substituted cyclopentadien...
79
00132928
Emulsion polymer An emulsion polymer and a method for preparing the emulsion polymer by the free radical polymerization of at least one first ethylenically unsaturated monomer to form a first emulsion pol...
Resin composition for agricultural film A resin composition for agricultural films which is obtained by compounding 100 parts by weight of a synthetic resin (A) with the following amount of the following polymeric stabilizer (B...
82
00814091
High refractive index thermoplastic polyphosphonates High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These poylmers are particularly useful for optical and ophthalmic parts, such as ...
83
00816398
Polymerization catalyst and process An olefin polymerization process is provided comprising contacting an olefin monomer with chromium oxide on a titanium containing silica support having less than about 3 weight percent ti...
Polymersation process A process for producing a polyolefin is disclosed, which comprises contacting at least one 1-olefin under polymerisation conditions with a polymerisation catalyst or catalyst system compr...
95
00137250
Composition of aqueous emulsion and adhesive composition An aqueous emulsion composition that has high adhesion strength for a variety of materials so that it can be used for the adhesive bonding of even molded products and an adherent composit...
96
00134263
Copolymer of cement admixture, its preparing method and use The present invention provides a copolymer for cement admixtures which displays high dispersibility, a production process for the copolymer, a cement admixture utilizing the copolymer and...
97
00816376
Method for preparing imides from sulfonyl fluorides This invention discloses a method for preparing imides (I) and (II) from compounds having a sulfonyl fluoride functional group. The imides so prepared are useful in a variety of catalytic...
Method for isolating polymer resin from solution slurries Soluble polymer resins are separated from a solution slurry with the use of a precipitation aid where the slurry contains the polymer resin in both a soluble form and a solid particulate ...
100
01117045
Light fiber with excellent dyeing performance The present invention provided a fiber showing excellent dyeability without impairing the lightweight property, strength and chemical resistance intrinsic in polyolefins such as polyethyl...
