Condensed phase polymers, method of making same, and...

Details Condensed phase polymers, method of making same, and... Condensed phase polymers, method of making same, and...

C - Chemistry, Metallurgy

08

F

400/2005, 400/20

C08F 297/04 (2006.01) C08F 4/48 (2006.01) C08G 81/02 (2006.01) C09J 153/00 (2006.01)

Patent

CA 1312978

Abstract of the Disclosure The present invention relates to pressure sensitive adhesive compositions comprising tackified elastomeric copolymers or block copolymers, e.g., based upon styrene/isoprene, having a novel condensed phase structure wherein polymer branches occur along the polymer backbone, either at a predetermined location or at random locations. The invention also provides sheet materials coated with the adhesive compositions. The polymers of the present invention are made by a method which comprises the step of reacting, under polymerization conditions, hydrocarbyl lithium initiator, at least one anionically polymerizable compound, and an organometallic-substituted styrene condensing agent. The reactants may be added simultaneously to produce a copolymer with polymer branch segments randomly located along the polymer backbone or sequentially to produce a copolymer with branches located at the same predetermined location along the polymer backbone. The resultant polymers may be further reacted with a linking agent to form multi-arm copolymers. The resultant elastomeric polymers are compatible with any of a wide variety of known tackifier resins and plasticizers to produce unique pressure-sensitive adhesive compositions.

579220

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1218072