Block copolymer, method of making the same, diamine precursors o

Details Block copolymer, method of making the same, diamine precursors o Block copolymer, method of making the same, diamine precursors o

1994-12-05

1995-10-24

Dean, Ralph H.

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

Synthetic resins

From silicon reactant having at least one...

528 22, 528 28, 528 37, 528 38, 524588, 524585, 525454, 525474, 4284231, 428447, C08C 7708

Patent

active

054611342

ABSTRACT:
Block copolymers having a repeating unit comprised of polysiloxane and urea segments are prepared by copolymerizing certain diaminopolysiloxanes with diisocyanates. The invention also provides novel diaminopolysiloxanes useful as precursors in the preparation of the block copolymers and a method of making such diaminopolysiloxanes. Pressure sensitive adhesive compositions comprising the block copolymer are also provided as are sheet materials coated with the same.

REFERENCES:
patent: 3562352 (1971-02-01), Nyilas
patent: 3890269 (1975-06-01), Martin
patent: 4203883 (1980-05-01), Hangauer
patent: 4518758 (1985-05-01), Cavezzan et al.
patent: 4528343 (1985-09-01), Kira
patent: 4677182 (1987-06-01), Leir et al.
patent: 5214119 (1993-05-01), Leir et al.
patent: 5276122 (1994-01-01), Aoki et al.
Yilgor et al., Segmented Organosiloxane Copolymers 1. Synthesis of Siloxane-Urea Copolymers, Polymer vol. 25, 1800-1806.
Polymer, vol. 25, pp. 1800-1816, Dec., 1984 Iskender Yilgor, Ahmad K. Sha'aban, Warren P. Steckle, Jr. Dinesh Tyagi, Garth L. Wilkes and James E. McGrath.
Chemistry and Technology of Silicones, by Walter Noll, published by the Academic Press, Inc., pp. 226-229.

Affiliated with

Also associated with

Rating

Block copolymer, method of making the same, diamine precursors o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Block copolymer, method of making the same, diamine precursors o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Block copolymer, method of making the same, diamine precursors o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1887538