Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-08-12
1989-08-15
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525175, 525194, 525207, 5253276, 5253279, 525375, 525376, C08F 832
Patent
active
048575950
ABSTRACT:
Polymer bound hindered amine light stabilizers are prepared by reacting hindered amine light stabilizers containing reactive hydrazide functionalities with anhydride containing polymers or copolymers. The reactions may be carried out in an inert solvent or in a melt blending step. The polymer bound hindered amine light stabilizers are useful alone or may also be used to stabilize other polymers, copolymers or polymer blends against the deleterious effects of heat and/or light.
REFERENCES:
patent: 2769804 (1956-11-01), Hanson
patent: 2971939 (1961-02-01), Baer
patent: 2989517 (1961-06-01), Hanson et al.
patent: 3483276 (1969-12-01), Mahlman
patent: 3488311 (1970-01-01), Burdick et al.
patent: 3509110 (1970-04-01), Di Giulio et al.
patent: 3553177 (1971-01-01), Hazen et al.
patent: 3555001 (1971-01-01), Wallis et al.
patent: 3560455 (1971-02-01), Hazen et al.
patent: 3560456 (1971-02-01), Hazen et al.
patent: 3560457 (1971-02-01), Hazen et al.
patent: 3632561 (1972-01-01), Gibb et al.
patent: 3639334 (1972-02-01), Holoch
patent: 3723375 (1973-03-01), Field et al.
patent: 3755354 (1973-08-01), Holub et al.
patent: 3884882 (1975-05-01), Caywood, Jr.
patent: 3899491 (1975-08-01), Ramey et al.
patent: 4097551 (1978-06-01), DiGiulio et al.
patent: 4108943 (1978-08-01), Lee
patent: 4147689 (1979-04-01), Thompson et al.
patent: 4191683 (1980-03-01), Brunetti et al.
patent: 4223147 (1980-09-01), Oertel et al.
patent: 4348524 (1982-09-01), Karrer et al.
patent: 4427828 (1984-01-01), Hergenrother et al.
patent: 4465571 (1984-08-01), Hansen
patent: 4469828 (1984-09-01), Minagawa et al.
patent: 4481315 (1984-11-01), Rody et al.
patent: 4486570 (1984-12-01), Lordi et al.
patent: 4506056 (1985-03-01), Gaylord
patent: 4508874 (1985-04-01), Hergenrother et al.
patent: 4520171 (1985-05-01), Diveley et al.
patent: 4522983 (1985-06-01), Le-Khac et al.
patent: 4522992 (1985-06-01), Verbrugge
patent: 4578472 (1986-03-01), Yoshimura et al.
patent: 4618634 (1986-10-01), Cantatore et al.
patent: 4692486 (1987-09-01), Gugumus
patent: 4785063 (1988-11-01), Slongo et al.
S. Rosenberger et al., "N-Salicyloylhydrazine Stabilizers for Polyolefins", Chem. Abst., 78:112174b (1973).
W. B. Lutz et al., "New Derivatives of 2,2,6,6-Tetramethylpiperidine", J. Org. Chem., vol. 27, pp. 1695-1703 (1962).
G. De Vito et al, "Functionalization of an Amorphous Ethylene-Propylene Copolymer by Free Radical Initiated Grafting of Unsaturated Molecules," Journal of Polymer Science: Polymer Chemistry Ed., vol. 22, 1335-1347 (1984).
Kazmierzak Robert T.
MacLeay Ronald E.
Lipman Bernard
Pennwalt Corporation
Schofer Joseph L.
LandOfFree
Polymer bound hindered amine light stabilizers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymer bound hindered amine light stabilizers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer bound hindered amine light stabilizers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-122359