Adhesive compositions made with condensed phase polymers and she

Details Adhesive compositions made with condensed phase polymers and she Adhesive compositions made with condensed phase polymers and she

1989-10-20

1992-01-07

Ziegler, Jacob

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

524356, 524500, 524507, 524516, 525 98, 525 99, B32B 712, B32B 1504, C08L 5302

Patent

active

050790900

ABSTRACT:
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.

REFERENCES:
patent: 2982757 (1961-05-01), Lewis
patent: 3239478 (1966-03-01), Harlan, Jr.
patent: 3480584 (1969-11-01), Archer et al.
patent: 3519585 (1970-07-01), Miller
patent: 3658740 (1972-04-01), Marrs et al.
patent: 3949020 (1976-04-01), Prudence
patent: 4010226 (1977-03-01), Crossland et al.
patent: 4080400 (1978-03-01), Martin
patent: 4086298 (1978-04-01), Fahrbach et al.
patent: 4096203 (1978-06-01), St. Clair
patent: 4143089 (1979-03-01), Martin
patent: 4148838 (1979-04-01), Martin
patent: 4163764 (1979-08-01), Nash
patent: 4221884 (1980-09-01), Bi et al.
patent: 4248980 (1981-02-01), Bi et al.
patent: 4248982 (1981-02-01), Bi et al.
patent: 4248983 (1981-02-01), Bi et al.
patent: 4248984 (1981-02-01), Bi et al.
patent: 4273896 (1981-06-01), Martin
patent: 4288567 (1981-09-01), Feeney et al.
patent: 4391949 (1983-05-01), St. Clair
patent: 4444953 (1984-04-01), St. Clair
Odian, Principles of Polymerization, 2nd Ed., Wiley-Interscience, p. 18 (1981).
Bi and Fetters (Macromolecules 9, 732-742 [1976]) Nametkin, Chemical Abstract Nos.: 85:47314a (1976); 87:185046g (1977); 89:110569n (1978); and 93;168679x (1980).
Nametkin, Dokl, Nauk SSSR, 215, 861 (1974).
Chaumont (Eur. Poly. J. 15, 537 [1979]) Kawakami, Polymer J., 14, 913 (1982).
Greber, Agnew, Makromol. Chem. 1971, 16/17, 325.
Hirao et al [Macromolecules 20, 242 (1987)].
1952 Fall Symposium, Division of Paint, Varnish and Plastics Chemistry, American Chemical Society.

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