Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-01-07
1995-06-27
Short, Patricia A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
525 43, 525 44, 525 49, 525 90, 525 92F, C08L 6706
Patent
active
054280680
ABSTRACT:
This invention relates to a thermosetting unsaturated polyester or vinyl ester resin compositions modified with AB or ABA block copolymers. The A blocks are unsaturated polyester while the B blocks are flexible poller having a Tg of 0.degree. C. or lower. The blocks are generally separately prepared having a variety of terminal groups such as hydroxyl, carboxyl, amine, or isocyanate groups, but low molecular weight A blocks can be prepared in situ on the B blocks, The functionality of the blocks can be controlled to get AB or ABA diblocks and polyblocks, These modified unsaturated polyester or vinyl ester resin compositions have higher flexural strain to failure and are generally tougher than standard resins without modification. Control of the reaction conditions and the functionality of the blocks prior to coupling minimizes the formation of A(BA).sub.n where n is an integer above 1.
REFERENCES:
patent: 2750314 (1956-06-01), Bemmels
patent: 2829131 (1958-04-01), Greenspan et al.
patent: 2838478 (1958-06-01), Hillyer et al.
patent: 3119711 (1964-01-01), Starmann
patent: 3429951 (1969-02-01), Childers
patent: 3437517 (1969-04-01), Eilerman
patent: 3538043 (1970-11-01), Herold
patent: 3555112 (1971-01-01), Winkler
patent: 3651014 (1972-03-01), Witsiepe
patent: 3718714 (1973-02-01), Comstock
patent: 3827230 (1974-08-01), Marzocchi et al.
patent: 3888645 (1975-06-01), Marzocchi
patent: 4020036 (1977-04-01), South, Jr.
patent: 4031165 (1977-06-01), Saiki et al.
patent: 4051199 (1977-09-01), Udipi et al.
patent: 4076767 (1978-02-01), Samejima
patent: 4131725 (1978-12-01), Udipi
patent: 4242415 (1980-12-01), Feltzin et al.
patent: 4255299 (1981-03-01), Diamon
patent: 4290939 (1981-09-01), Bertsch
patent: 4309473 (1982-01-01), Minamisawa et al.
patent: 4329438 (1982-05-01), Yamori et al.
patent: 4341672 (1982-07-01), Hsich et al.
patent: 4413072 (1983-11-01), Hess
patent: 4419487 (1983-12-01), Rowe
patent: 4478963 (1984-10-01), McGarry
patent: 4515710 (1985-05-01), Cobbledick
patent: 4524178 (1985-01-01), Hefner et al.
patent: 4530962 (1985-07-01), Alexander
patent: 4562115 (1985-12-01), Hergenrother
patent: 4748064 (1988-05-01), Harpell et al.
patent: 4783544 (1988-11-01), Yokoshima et al.
patent: 4833210 (1989-05-01), Fujii et al.
patent: 4851474 (1989-07-01), Willis
patent: 4851476 (1989-07-01), Willis
patent: 4913955 (1990-04-01), Noda et al.
patent: 4970265 (1990-11-01), Willis
patent: 4981916 (1991-01-01), Willis
patent: 5084508 (1992-01-01), Kagaya et al.
patent: 5122553 (1992-06-01), Takayama et al.
Database WPI Sep. 1992, Derwent Publications LTD., London, GB; AN 92-354793 & JP-A-4 258 637 (Dainippon Ink & Chem KK) 14 Sep. 1992, "abstract."
Database WPI, Week 9223, Derwent Publications Ltd., London, GB; AN 92-188159 & JP-A-121 756 (Fjuitsu Ltd) 22 Apr. 1992, "abstract."
Journal of Applied Polymer Science, vol. 31, No. 1, Jan. 1986, New York, USA, pp. 55-63, Subhas C. Shit, Beni Madhab Mahoto, Mrinal M. Miati, Sukumar Maitt New Block Copolymers II. Synthesis and Characterization of an ABA-Type Block Copolymer, "abstract."
LaJudice Kevin P.
McBain Douglas S.
Melby Earl G.
Ratermann Andrew L.
GenCorp Inc.
Laferty Samuel B.
Rywalski Robert F.
Short Patricia A.
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