Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1979-09-18
1980-12-23
Phynes, Lucille M.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525440, 525447, 525448, 528301, 528303, 528304, C08L 6706, C08G 6376
Patent
active
042411998
ABSTRACT:
Novel polyester diols are described containing aliphatically saturated divalent diacyl moieties and olefinially unsaturated divalent diacyl moieties in a mole ratio of 0.25:1 to 3:1; and divalent dioxy moieties which are linear and/or branched, preferably divalent branched dioxy moieties and divalent linear dioxy moieties in a mole ratio of 0.3:1 to 3:1, the diacyl moieties being bonded through ester linkage to the dioxy moieties in a mole ratio of at least 1.75 dioxy moieties per diacyl moiety, wherein the polyester diol is end-blocked essentially only by alcoholic hydroxyl groups and has an acid number of less than 3. The novel polyester diols are highly useful in the production of polyurethane/vinyl polymer copolymers by reaction with polyisocyanates and polymerizable ethylenically unsaturated monomers. The polyester diols can be used for this purpose by mixing same with the polymerizable ethylenically unsaturated monomer, a catalyst capable of catalyzing polyurethane-forming reactions of polyisocyanates and polyhydroxyl compounds and the resulting compositions can be used in batch or automated molding operations. The novel tough polyurethane/vinyl polymer copolymers, reinforced or unreinforced, are useful as substitutes for metals in the manufacture of structural and other parts, such as, automotive fenders for the purpose of providing energy-saving light-weight parts, and appliance and business machine housings.
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patent: 4165307 (1979-08-01), Mizuno et al.
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Gallagher Richard J.
Phynes Lucille M.
Union Carbide Corporation
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