Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-08-12
1994-07-19
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525123, 521137, 2643281, 2643282, 2643286, 2643288, C08L 7502, C08G 1850
Patent
active
053310519
ABSTRACT:
A polyurea resin molding composition for RIM use comprising (a) polyoxyalkylenpolyamine having an average molecular weight greater than about 400 and a plurality of terminal primary or secondary amino groups, (b) an aromatic polyamine and/or xylylenediamine and (c) a polyisocyanate. The component (a) contains dispersed therein a polymer prepared by the in situ polymerization of at least two different olefinically unsaturated monomers in the presence of a radical polymerization initiator, the ratio of the average amino equivalent of said polyamines (a) and (b) in combination to the average NCO equivalent of said polyisocyanate (c) being between about 1:0.7 to 1:1.5.
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Ishibashi Hideo
Izumo Takaharu
Oshima Toshiyuki
Tamura Rie
Yamamoto Satoshi
Kight III John
Nippon Paint Co. Ltd.
Sergent Rabon
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