Solid block and random elastomeric copolymers

Details Solid block and random elastomeric copolymers Solid block and random elastomeric copolymers

1990-01-16

1993-02-16

Seidleck, James J.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 98, 525285, 525315, 5253323, 5253328, 5253334, 525250, 525271, 525940, C08F29704, C08L 5302

Patent

active

051872366

ABSTRACT:
There is disclosed a linear block copolymer comprising at least one triblock I-B-I, wherein I is a block of a polymerized conjugated diene of at least 5 carbon atoms, such as isoprene, and B is a block of a polymer of a conjugated diene, different from that of formula (1), of at least 4 carbon atoms, such as 1,3-butadiene. The B block is selectively hydrogenated, while each of the I blocks retains a sufficient amount of its original unsaturation to vulcanize the copolymer. There is also disclosed an alternative linear block copolymer containing at least one triblock of the first polymer block made from an aryl-substituted olefin, such as sytrene, and the conjugated diene used to polymerize the block I, the second middle polymer block of the diene used to polymerize the block B, and the third polymer block which is the same as the first polymer block. In this alternative copolymer, the middle block is also selectively hydrogenated, thereby leaving the terminal polymer blocks with a sufficient amount of double bonds to vulcanize the copolymer. The polymers can be crosslinked or functionalized through the terminal blocks containing the vinyl unsaturation. There are also disclosed random and star-branched block and random copolymers made from the same monomers as the linear block copolymers.
Also disclosed are methods of producing and selectively hydrogenating the polymers.

REFERENCES:
patent: Re27145 (1971-06-01), Jones
patent: 3431323 (1969-03-01), Jones
patent: 3458600 (1969-07-01), Mann
patent: 3465063 (1969-09-01), Hassell et al.
patent: 3634549 (1972-01-01), Shaw et al.
patent: 3700748 (1972-10-01), Winkler
patent: 3792127 (1974-02-01), Gillies
patent: 3795615 (1974-03-01), Pappas et al.
patent: 3810957 (1974-05-01), Lunk
patent: 3823203 (1974-07-01), De LaMare
patent: 3830880 (1974-08-01), De LaMare
patent: 3937760 (1976-02-01), Cole et al.
patent: 3975460 (1976-08-01), Davison et al.
patent: 3985826 (1976-10-01), Futamura
patent: 4041103 (1977-08-01), Davison et al.
patent: 4098980 (1978-07-01), Markle et al.
patent: 4116917 (1978-09-01), Eckert
patent: 4134928 (1979-01-01), Moczygemba
patent: 4162241 (1979-07-01), Canter et al.
patent: 4167544 (1979-09-01), Ramos et al.
patent: 4168286 (1979-09-01), Moczygemba
patent: 4304881 (1981-12-01), Aoki et al.
patent: 4385151 (1983-05-01), Furukawa et al.
patent: 4413098 (1983-11-01), Hattori et al.
patent: 4436873 (1984-03-01), Furukawa et al.
patent: 4440965 (1984-04-01), Palmer
patent: 4501857 (1985-02-01), Kishimoto et al.
patent: 4588777 (1986-05-01), Hotta
patent: 4628072 (1986-12-01), Shiraki et al.
patent: 4673714 (1987-06-01), Kishimoto et al.
patent: 4764572 (1988-08-01), Bean, Jr.
patent: 4769415 (1988-09-01), Hotta et al.
patent: 4814386 (1989-03-01), Hellermann et al.
patent: 4843120 (1989-06-01), Halasa et al.
patent: 4849481 (1989-07-01), Rhodes et al.
patent: 4879349 (1989-11-01), Hoxmeier
patent: 4880878 (1989-11-01), Himes et al.
patent: 4898914 (1990-02-01), Gergen et al.
patent: 4910261 (1990-03-01), Kaszas et al.
patent: 4929699 (1990-05-01), Wilson et al.
patent: 4954576 (1990-09-01), Kubo et al.
Falk, Journal of Polymer Science: Part A-1, vol. 9, 2617-2623 (1971).
Falk, Die Angewandte Chemie 21 (1972) 17-23 (No. 286).
Mohajer et al., Hydrogenated Linear block copolymers of butadiene and isoprene: effects of variation of composition and sequence architecture on properties, 23 Polymer 1523-1535 (Sep. 1982).

Affiliated with

Also associated with

Rating

Solid block and random elastomeric copolymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Solid block and random elastomeric copolymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solid block and random elastomeric copolymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2148566