Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-10-19
1994-10-11
Sellers, Robert E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
525438, C08K 714, C08L 6702, C08L 6900
Patent
active
053547918
ABSTRACT:
The polyester-polycarbonate blend composition useful as a molding composition shows improved hydrolytic stability. The polyester-polycarbonate comprises polyester having epoxy functionality, polycarbonate, and a catalyst quencher selected from the group of certain quenchers, e.g., metal acid phosphates, metal acid pyrophosphates and metal polyphosphates. Preferred polyesters having epoxy functionality comprise a polyester which is reacted with a difunctional epoxy compound. The invention provides hydrolytic stability which is improved over polyester-polycarbonate compositions which employ other catalyst quenchers for reducing transesterification. The invention also shows hydrolytic stability which is superior to blends in which polyester and polyfunctional epoxy compounds are merely blended with the polycarbonate and catalyst quencher.
REFERENCES:
patent: 2465319 (1949-03-01), Rex et al.
patent: 2999835 (1961-09-01), Goldberg
patent: 3028365 (1962-04-01), Schnell et al.
patent: 3030331 (1962-04-01), Goldberg
patent: 3047539 (1962-07-01), Pengilly
patent: 3169121 (1965-02-01), Goldberg
patent: 3275601 (1966-09-01), Schnell et al.
patent: 3334154 (1967-08-01), Kim
patent: 3635895 (1972-01-01), Kramer
patent: 3886104 (1975-05-01), Borman et al.
patent: 3915926 (1975-10-01), Wambach
patent: 3937751 (1976-02-01), Schmid et al.
patent: 3978020 (1976-08-01), Liberti
patent: 3979477 (1976-09-01), Schmid et al.
patent: 3985825 (1976-10-01), Schmid et al.
patent: 4001184 (1977-01-01), Scott
patent: 4020122 (1977-04-01), Borman et al.
patent: 4071504 (1978-01-01), Korver
patent: 4141882 (1979-02-01), Kodama et al.
patent: 4188314 (1980-02-01), Fox et al.
patent: 4246378 (1981-01-01), Kometani et al.
patent: 4401804 (1983-08-01), Wooten et al.
patent: 4487896 (1984-12-01), Mark et al.
patent: 4532290 (1985-07-01), Jaquiss et al.
patent: 4533679 (1985-08-01), Rawlings
patent: 4559388 (1985-12-01), Liu et al.
patent: 4795771 (1989-01-01), Yoshihara
patent: 4904746 (1990-02-01), Brown et al.
patent: 4933429 (1990-06-01), McCracken et al.
patent: 4999388 (1991-03-01), Okamoto
patent: 5087665 (1992-02-01), Chung et al.
patent: 5250634 (1993-10-01), Toyoda et al.
General Electric Company
Sellers Robert E.
LandOfFree
Epoxy-functional polyester, polycarbonate with metal phosphate does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Epoxy-functional polyester, polycarbonate with metal phosphate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Epoxy-functional polyester, polycarbonate with metal phosphate will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1659010