Silacyclobutane functional polymers and their production

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

524861, 528 15, 528 16, 528 18, 528 19, 528 31, 528 33, 528 34, 528 37, C08L 8300

Patent

active

050496115

ABSTRACT:
The silacyclobutane functional polydiorganosiloxane copolymers of the invention have the following structure: ##STR1## wherein M is selected from ##STR2## wherein R.sup.a, R.sup.b, R.sup.c, R.sup.d, R.sup.e, and R.sup.f are independently monovalent radicals selected from the group consisting of hydrogen, hydrocarbon, or substituted hydrocarbon; m and x are integers of from 0 or more; n is equal to 1; and p is an integer greater than 0; with the proviso that there is at least one silacyclobutane group in the copolymer. The copolymer can be made by reacting a hydroxyl endblocked polydiorganosiloxane with either a difunctional chain extending silacyclobutane or with a monofunctional chain stopper, or a mixture of chain extender and chain stopper. The copolymer can be made into curable compositions by use of suitable catalyst.

REFERENCES:
patent: 3046291 (1962-07-01), Sommer
patent: 3398178 (1968-08-01), Nelson
patent: 3445495 (1969-05-01), Nelson
patent: 3687995 (1972-08-01), Jonas et al.
patent: 3964427 (1972-09-01), Jonas et al.
Khim Geterotsiki. Soedin. (Chemistry of Heterocyclic Compounds), Nametkin, Vdovin. and Babich, (1966) (4) 630.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Silacyclobutane functional polymers and their production does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Silacyclobutane functional polymers and their production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silacyclobutane functional polymers and their production will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1917681

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.