Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1998-04-17
1999-09-28
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525117, 525446, 525452, 528 15, 528 28, 528 31, C08F 800
Patent
active
059590343
ABSTRACT:
A curable silicone composition having high compatibility with organic polymers, which comprises (a) 100 parts by weight of a hydroxyl group-containing organopolysiloxane represented by the following formula (I) and (b) 1-50 parts by weight of an isocyanate compound having at least two isocyanate groups per molecule, wherein the number of the hydroxyl groups per molecule in the component (a) plus the number of the isocyanate groups per molecule in the component (b) is at least 5: ##STR1## wherein R.sup.1 is a monovalent saturated hydrocarbon group; R.sup.2 is a phenyl-substituted alkyl group represented by C.sub.6 H.sub.5 --(CH.sub.2).sub.p --CH(R.sup.4)--CH.sub.2 --; R.sup.3 is a hydroxyl-substituted alkyl group represented by --CH.sub.2 --CH.sub.2 --CH.sub.2 --O--(C.sub.2 H.sub.4 O).sub.q --H; two R groups are the same group or different groups selected from the groups represented by R.sup.1, R.sup.2 or R.sup.3 ; R.sup.4 is a hydrogen atom or the same group as R.sub.1 ; l is 0 or a positive number, m is a positive number and n is a positive number of no less than 2, provided that 0.10.ltoreq.m/(l+m+n).ltoreq.0.70 and 5.ltoreq.l+m+n.ltoreq.100; p is an integer of from 0 to 5; and q is an integer of from 1 to 3.
REFERENCES:
patent: 5248750 (1993-09-01), Takarada et al.
patent: 5306737 (1994-04-01), Burkhart et al.
patent: 5565194 (1996-10-01), Burkhart et al.
Aoki Shunji
Ogawa Masahiko
Omura Naoki
Marquis Melvyn I.
Milstead Mark W.
Shin-Etsu Chemical Co. , Ltd.
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