Polyester-flexible polymer block copolymers and mixtures thereof

Details Polyester-flexible polymer block copolymers and mixtures thereof Polyester-flexible polymer block copolymers and mixtures thereof

1992-01-30

1994-11-08

Short, Patricia A.

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

Synthetic resins

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

525 43, 525 44, 525 48, 525408, 525437, 525440, 525444, 525445, 525531, C08G 8100, C08G 6391

Patent

active

053628195

ABSTRACT:
A block copolymer of generally an AB, ABA, or A(BA).sub.n structure, or mixtures thereof where the A block is an unsaturated polyester, the B block is a flexible polymer having a Tg of 0.degree. C. or lower, and n is 2 to 5. The various block components are generally first separately prepared as polymers with the flexible polymer generally having 1 or 2 functional end groups such as an amine group, a carboxyl group, or a hydroxyl group with the later being preferred. Alternatively, for low molecular weight unsaturated polyester blocks, the block can be made in situ. The preferred reaction route is to react a mono or dihydroxy terminated flexible polymer with a diisocyanate which subsequently can be readily reacted with the polyester. The block copolymers can be utilized as toughening agents. They furthermore can be utilized to coat a fiber structure such as individual fibers, a woven structure, or a nonwoven structure such as mats, rovings, bundles, and the like, with the coated fiber structures subsequently incorporated into a polymeric matrix such as polyester.

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
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), Daimon
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: 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-4 121 756 (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."

Affiliated with

Also associated with

Rating

Polyester-flexible polymer block copolymers and mixtures thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyester-flexible polymer block copolymers and mixtures thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyester-flexible polymer block copolymers and mixtures thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1783341