Title: Polyurethane prepolymers with high storage stability
Application Number: 85104908 Application Date: 1985.06.25
Publication Number: 1006485 Publication Date: 1987.01.07
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C08G18/10,C08K5/10
Applicant(s) Name: Paint Research Inst., Ministry of Chem. Ind. Address:
Inventor(s) Name: Han Jinkui
Attorney & Agent: WANG SHUQIN
Abstract:
     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 (2.4 or 2.4/2.6 mixture) with purity of 98%, (3) solvent, (4) benzaldehyde as reaction stabilizer and (5) ethylene glycol as storage stabilizer. The product is light colored and can be stored more than one year.
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