Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Dividing work to form plural articles
Patent
1979-09-18
1981-07-28
Cockeram, H. S.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Dividing work to form plural articles
156242, 156246, 156250, 264 453, 264 467, 264 53, 264 54, 264236, 264257, 26432818, 2643282, 264331, 264DIG5, 4284233, 4284248, 521122, 521128, 521137, 528 52, 528 75, 525 39, 525400, 525445, C08G 1862, C08G 1882, C08G 1814
Patent
active
042809797
ABSTRACT:
Novel polyester diols are described containing aliphatically saturated divalent diacyl moieties and olefinically 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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Japanese Publication JA-49109496, Oct. 17, 1974.
Dunleavy Raymond A.
Gill William A.
Cockeram H. S.
Gallagher Richard J.
Union Carbide Corporation
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