Organopolysiloxane polymers and method for making

Details Organopolysiloxane polymers and method for making Organopolysiloxane polymers and method for making

1990-07-10

1992-03-17

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 29, 528 35, C08G 7704

Patent

active

050969919

ABSTRACT:
An organopolysiloxane homopolymer or copolymer comprising recurring units of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently selected from monovalent hydrocarbon groups, Q is a divalent aromatic hydrocarbon group, and letter n is an integer of from 1 to 4 has a high melting point and a high glass transition temperature and cures into products having a high modulus of elasticity and mechanical strength and thus suitable for various industrial applications. The polymer is prepared by a simple method involving the steps of reacting an alkali metal salt of a dihydroxy aromatic compound with a halogenated alkyl diorganoalkoxysilane, hydrolyzing the resulting bis(alkoxysilylalkoxy)arylene compound, and polycondensing the resulting bis(hydroxysilylalkoxy)arylene compound.

REFERENCES:
patent: 3293211 (1966-12-01), Krimm et al.
patent: 4233427 (1980-11-01), Bargain et al.
R. L. Merker et al., Journ. of Polymer Science Part A, vol. 2, pp. 31-44 (1964).
Rosenberg & Choe, Abstracts of Papers, 172nd Nat. Meeting; Am. Chem. Soc., (8/76), pp. 239-247.
Merker and Scott, Journ. of Polym. Science, Part A, vol. 2, pp. 15-29 (1964).

Affiliated with

Also associated with

Rating

Organopolysiloxane polymers and method for making does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Organopolysiloxane polymers and method for making, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organopolysiloxane polymers and method for making will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1476645