High heat polycarbonate compositions, methods for the...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C548S466000, C548S471000, C548S472000, C548S476000

Reexamination Certificate

active

07491788

ABSTRACT:
Melt blended compositions, comprising up to 20 wt % of an optional additive, and 80-100 wt % of a copolycarbonate having a Tg of 200° C. or more of (1)wherein the mole ratio of x:y is 35:65 to 90:10, R1is derived from a dihydroxy compound (2)wherein R3and R5are each independently a halogen or a C1-6alkyl group, R4is a C1-6alkyl, phenyl, or phenyl substituted with up to five halogens or C1-6alkyl groups, and each c is independently 0 to 4; R2is derived from a dihydroxy compound (6):wherein Raand Rbare each independently a halogen atom or a monovalent C1-6alkyl group; p and q are each independently integers of 0 to 4; and Xais a divalent group; and 95 to 5 wt % of a polycarbonate having a Tg of less than 200° C. of formula (9)wherein R9derived from a dihydroxy compound of formula (6); and 0.001 to 0.1 wt % of a transesterification catalyst.

REFERENCES:
patent: 4134936 (1979-01-01), Byrne et al.
patent: 4217438 (1980-08-01), Brunelle et al.
patent: 4310652 (1982-01-01), DeBona et al.
patent: 5344910 (1994-09-01), Sybert
patent: 5455310 (1995-10-01), Hoover et al.
patent: 5804525 (1998-09-01), Boden et al.
patent: 7135577 (2006-11-01), Rai et al.
patent: 2005/0222334 (2005-10-01), Srinivasan et al.
patent: 2005/0228137 (2005-10-01), Srinivasan et al.
patent: 0633292 (1995-01-01), None
patent: 1582549 (2005-10-01), None
patent: 06003838 (1994-01-01), None
patent: 06082624 (1994-03-01), None
patent: 2820277 (1998-11-01), None
patent: 2005068216 (2005-03-01), None
patent: 2006/127219 (2006-11-01), None
JP03-070790; Publication Date: Mar. 26, 1991 (translation of abstract only).
Boranowska, Z. et al, “Badanie Odpomosci Poliweglanow Na Hydrolize W Srodowisku Zasadowyn” Polimery, Instytut Chemii Prrzemysowej, Warsaw, PL, vol. 15, No. 1, (1970), pp. 12-14.
Korshak, V.V. et al, “Cardo Polymers” Reviews in Macromolecular Chemistry, Marcel Dekker, Inc., New York, vol. C1, No. 1, (1974), pp. 45-142.
M.S. Lin, et al “Polymers With Improved Flammability Characteristics. I. Phenolphthalein-Related Homopolymers”; Journal of Polymer Science: Polymer Chemistry Edition, vol. 19, 2659-2670 (1981).
M.S. Lin, et al “Thermal Degradation Study of Phenolphthalein Polycarbonate”, Journal of Polymer Scient: Polymer Chemistry Edition, vol. 19, 2773-2797 (1981).
International Search Report for International Application No. PCT/US2007/065867, mailed Aug. 16, 2007; 6 pages.
Written Opinion of the International Searching Authority for International Application No. PCT/US2007/065867, 5 pages.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High heat polycarbonate compositions, methods for the... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High heat polycarbonate compositions, methods for the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High heat polycarbonate compositions, methods for the... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4069929

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.