US Patent No: 4,751,268

Number of patents in Portfolio can not be more than 2000

Modified carboxyl-containing polyphenylene ether resins

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Abstract

A process for the preparation of modified polyphenylene ether resins by grafting fumaric acid, preferably at from 270.degree. to 350.degree. C., onto polyphenylene ethers which are mixed with vinylaromatic polymers, and modified polyphenylene ether resins consisting of from 4.95 to 95 parts by weight of polyphenylene ether, from 95 to 4.95 parts by weight of vinylaromatic polymer and from 0.05 to 10 parts by weight of grafted fumaric acid.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BASF AKTIENGESELLSCHAFTLUDWIGSHAFEN10631

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schlemmer, Lothar Maxdorf, DE 16 344
Seiler, Erhard Ludwigshafen, DE 43 475
Taubitz, Christof Wachenheim, DE 21 248

Cited Art

Patent Info (Count) # Cites Year
 
SUMITOMO CHEMICAL COMPANY, LIMITED (2)
4,338,410 Process for producing graft copolymers 8 1980
4,283,511 Method for producing modified polyphenylene oxides 10 1980
 
GENERAL ELECTRIC COMPANY (1)
4,287,321 Poly(phenylene ether)poly(vinyl aromatic) compositions 9 1979

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
SABIC INNOVATIVE PLASTICS IP B.V. (10)
5,017,656 Polyphenylene ether resins and compositions having reduced odor and method of reducing odor in same 10 1988
6,165,309 Method for improving the adhesion of metal films to polyphenylene ether resins 13 1998
6,417,274 Process for the manufacture of functionalized polyphenylene ether resins 3 1999
6,211,327 Process for the manufacture of low molecular weight polyphenylene ether resins 20 1999
6,407,202 Poly(arylene ether) and process for making the same 2 2000
6,303,748 Process for the manufacture of low molecular weight polyphenylene ether resins 4 2000
6,429,277 Process for the manufacture of low molecular weight polyphenylene ether resins 4 2001
6,437,085 Process for the manufacture of low molecular weight polyphenylene ether resins 5 2001
6,576,738 Poly (arylene ether) and process for making the same 3 2002
8,075,812 Method of separating a poly(arylene ether) composition from a solvent, and poly(arylene ether) composition prepared thereby 0 2007
 
ALLIEDSIGNAL INC. (1)
5,336,732 Process for forming polyamide/poly(phenylene ether) blends 11 1993
 
BASF AKTIENGESELLSCHAFT (1)
4,943,399 Continuous preparation of molding materials based on polyphenylene ethers and nylons 8 1989
 
GENERAL ELECTRIC COMPANY (1)
5,189,076 Polyphenylene ether resins and compositions having reduced odor and method of reducing odor in same 2 1990
 
IDEMITSU KOSAN CO., LTD. (1)
5,952,431 Process for producing acid-modified polyphenylene ether and polystyrenic resin composition 3 1997