Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-12-30
1995-02-21
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
526280, 526281, 528 97, 560102, 564 82, 564307, 568 38, 568 39, 568 47, 568632, 568633, 568634, C08G 5914, C08G 5904
Patent
active
053916506
ABSTRACT:
A compound having at least one 2-hydroxy-1,3-propylidene, 2-acetoxy-1,3-propylidene, or 2-alkoxy-1,3-propylidene moiety between two benzocyclobutene end moieties is prepared by (a) contacting a diepoxide species with a benzocyclobutene species containing a functionality capable of reacting with an epoxy group, (b) contacting an epoxy-containing benzocyclobutene species with a species containing two functionalities capable of reacting with an epoxy group, (c) contacting an epoxy-containing benzocyclobutene species with a benzocyclobutene species containing a functionality capable of reacting with an epoxy group, (d) contacting epichlorohydrin with benzocyclobutene species capable of reacting with an epoxy group, or (e) contacting epihalohydrin with benzocyclobutene species and difunctional species, wherein both species contain functionalities capable of reacting with epoxy groups. Each benzocyclobutene moiety is attached to the 2-hydroxy-1,3-propylidene moiety at the six-membered ring through oxygen or sulfur atoms, carboxyl, N-alkylimino, or 1,3-dioxyphenylene units. The unit linking the two benzocyclobutene moieties optionally contains aromatic moieties. The polymers prepared from the compounds are suitable for use in composites, coatings, adhesives, and binders. The polymers have outstanding processability and are mainly non-crystalline materials with low melt viscosities prior to the onset of curing.
REFERENCES:
patent: 4540763 (1985-09-01), Kirchhoff
patent: 4562280 (1985-12-01), Gilpin et al.
patent: 4570011 (1986-02-01), So
patent: 4638001 (1987-01-01), Kuhla et al.
patent: 4639442 (1987-01-01), Kuhla et al.
patent: 4642329 (1987-02-01), Kirchhoff et al.
patent: 4661193 (1987-04-01), Kirchhoff et al.
patent: 4711964 (1987-12-01), Tan et al.
patent: 4724260 (1988-02-01), Kirchhoff et al.
patent: 4743399 (1988-05-01), Kirchhoff et al.
patent: 4743600 (1988-05-01), Kuhla et al.
patent: 4783514 (1988-11-01), Kirchhoff et al.
patent: 4788187 (1988-11-01), Kuhla et al.
patent: 4795827 (1989-01-01), Bruza et al.
patent: 4812588 (1989-03-01), Schrock
patent: 4822930 (1989-04-01), Liu
patent: 4826997 (1989-05-01), Kirchhoff
patent: 4831172 (1989-05-01), Hahn et al.
patent: 4891455 (1990-01-01), Liu
patent: 4954583 (1990-09-01), Wang
patent: 4954584 (1990-09-01), Wang
patent: 4965329 (1990-10-01), Kirchhoff
patent: 5068396 (1991-11-01), Wang
patent: 5077367 (1991-12-01), Campbell, Jr. et al.
patent: 5120884 (1992-06-01), Thomas et al.
Chem. Abstr., No. 26024, 117:26031v, vol. 117, 1992, p. 658, Thomas, P. J. et al.
Synth. Commun. 1991,21(22), 2335-40.
22-Physical Org. Chem., No. 20492, 85:20487x, vol. 85, 1976. Fleming, Ian et al.
Tetrahedron Lett. 1976, (11), 881-4.
Derwent, No. 02306, EP-43194, Jun. 19, 1980. Fisons Ltd.
Brennan David J.
Hotz Charles Z.
Kirchhoff Robert A.
Scheck Daniel M.
White Jerry E.
Krass Frederick
The Dow Chemical Company
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