Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-01-11
2005-01-11
Egwim, Kelechi C. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C524S458000, C525S331900, C525S333100, C525S333200
Reexamination Certificate
active
06841627
ABSTRACT:
This invention discloses resilient, acrylic graft polymers comprising α-methylene lact(one)(am) monomers such as α-methylene-γ-butyrolactone, and blends of such polymers with thermoplastic matrix resins.This invention also discloses hard, non-resilient, acrylic graft polymers comprising α-methylene lact(one)(am) monomers such as α-methylene-γ-butyrolactone, and to blends of such polymers with thermoplastic matrix resins.This invention further discloses a general process for emulsion polymerization of α-methylene lact(one)(am) monomers such as α-methylene-γ-butyrolactone and its copolymers.
REFERENCES:
patent: 3678133 (1972-07-01), Ryan
patent: 3793402 (1974-02-01), Owens
patent: 3808180 (1974-04-01), Owens et al.
patent: 3825622 (1974-07-01), Robeson et al.
patent: 3985703 (1976-10-01), Ferry et al.
patent: 4136136 (1979-01-01), Dreyfuss et al.
patent: 4180494 (1979-12-01), Fromuth et al.
patent: 4543383 (1985-09-01), Heil et al.
patent: 5625001 (1997-04-01), Makower et al.
patent: 5998554 (1999-12-01), Yokoo
patent: WO 9912986 (1999-03-01), None
Peter A. Lovell and Dorian Pierre, Rubber-toughened Plastics, Emulsion Polymerization and Emulsion Polymers. Ch. 19, pp. 657-695, (1997).
D. Arnoldi, K. Dorn, H. Schwind, T. Habkert and D. Hauch, Hanau, Warmeformbestandding und optisch brillant, Kunststoffe, 87, (1997), pp. 734-736.
C. B. Bucknall, Blending, Toughened Plastics, pp. 99-102, (1997), Applied Science Publishers LTD, London.
R. J. Young and P. A. Lovell, Introduction to Polymers, second edition, pp. 65-68, (1991).
Charles E. Carraher, Jr. and Seymour, Polymer Chemistry, fifth edition, pp. 339-348, (2000).
E. I. du Pont de Nemours and Company
Egwim Kelechi C.
LandOfFree
Graft copolymers of methylene lactones and process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Graft copolymers of methylene lactones and process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graft copolymers of methylene lactones and process for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3400261