Anhydride-functional organo/(poly)siloxanes, a process for prepa

Details Anhydride-functional organo/(poly)siloxanes, a process for prepa Anhydride-functional organo/(poly)siloxanes, a process for prepa

1990-08-06

1991-05-14

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...

528 15, 528 23, 528 12, 528 29, 528 26, 528 31, 528 28, 525523, C08F28300

Patent

active

050157000

ABSTRACT:
Anhydride-functional organo(poly)siloxanes having average units of the general formula ##EQU1## in which the R(s) are the same or different and represent a monovalent hydrocarbon radical or a monovalent halogenated hydrocarbon radical having from 1 to 18 carbon atom(s) per radical, A represents a radical of the formula ##STR1## in which R.sup.1 represents a hydrogen atom or a monovalent hydrocarbon radical or a monovalent halogenated hydrocarbon radical having from 1 to 12 carbon atom(s) per radical and R.sup.2 represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 12 carbon atom(s) per radical, or the two radicals R and R.sup.2 together represent a divalent hyrocarbon radical having from 3 to 5 carbon atoms per radical, R.sup.3 represents a hydrogen atom or a monovalent hydrocarbon radical having from 1 to 4 carbon atom(s) per radical, with the proviso that R.sup.3 is a hydrogen atom if the two radicals R.sup.1 and R.sup.2 together represent a divalent hydrocarbon radical having from 3 to 5 carbon atoms per radical, R.sup.4, which may be the same or different, represent a hydrogen atom, a halogen atom or a cyano radical, a is 0 or 1, with an average of from 0.003 to 1.0, b is 0, 1, 2 or 3, with an average of from 0.05 to 2.5, and the sum of a+b is an average which is not greater than 3, with the proviso that at least one A radical is present per molecule.

REFERENCES:
patent: 4923948 (1990-05-01), Matsuki et al.

Affiliated with

Also associated with

Rating

Anhydride-functional organo/(poly)siloxanes, a process for prepa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anhydride-functional organo/(poly)siloxanes, a process for prepa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anhydride-functional organo/(poly)siloxanes, a process for prepa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1649051