Hydrogenated block copolymers

Details Hydrogenated block copolymers Hydrogenated block copolymers

1985-12-23

1987-08-18

Briggs, Sr., Wilbert J.

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

Synthetic resins

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

525250, 525289, 525314, C08F29702, C08F29704

Patent

active

046878157

ABSTRACT:
Novel, reactive, selectively hydrogenated block copolymers are claimed having the structures AB, ABA, (AB).sub.m Y, (AB).sub.n Y--A).sub.o and (AB).sub.n Y--B).sub.p where each A block is a copolymer block of a monoalkenyl arene monomer and a benzocyclobutene monomer of the formula ##STR1## where R is H or CH.sub.3 and each B block is a substantially completely hydrogenated conjugated diene polymer block.

REFERENCES:
patent: Re27145 (1971-06-01), Jones
patent: 3497483 (1970-02-01), Ketley
patent: 3595942 (1971-07-01), Wald et al.
patent: 4540763 (1985-09-01), Kirchhoff
Research Disclosure 268008.
Boekelheide et al., Tetrahedron Lett. 1978, 4245-8.
Boekelheide, Topics in Current Chem. 1983, 113, 100-4.
Perkins et al., Angew. Chem. Int. Ed. Engl. 1978, 17(8), 615-6.
Ewing et al., J. Chem. Soc., Chem. Commun. 1979, 207-8.
Gray et al., J. Am Chem. Soc. 1978, 100, 2892-3.
Harruff et al., J. Am Chem. Soc. 1978, 100, 2893-4.
Aalbersberg, Tetrahedron Lett. 1979, 22, 1939-42.
Hubert et al., J. Chem. Soc. 1965, 3160-9.
Chemical Abstract 72653f, vol. 82, 1975.

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