Impact modified syndiotactic polystyrene blend

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6048932
SERIAL NO

09072694

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present invention relates to an impact resistant polystyrene composition which comprises 5 to 97% by weight of an (a) styrenic polymer having syndiotactic configuration, 2 to 95% by weight of a (b) rubbery elastomer having an olefinic component or a polyolefin, 0.5 to 10% by weight of a (c) styrene/olefin block or graft copolymer having a micro-phase separation temperature of 180.degree. C. at the highest when diluted with dioctyl phthalate to a solution with a concentration of 60% by weight and 0.5 to 5% by weight of (d) poly(phenylene ether); according to the present invention, an impact resistant polystyrene composition can be provided which is greatly enhanced in impact resistance and extensibility without impairing heat resistance and modulus of elasticity.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
IDEMITSU KOSAN CO., LTD.TOKYO1131

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okada, Akihiko Ichihara, JP 40 542
Sato, Nobuyuki Tokyo, JP 124 1065

Cited Art Landscape

Patent Info (Count) # Cites Year
 
KURARAY CO., LTD. (2)
* 5089353 Multi-layer material having gas barrier properties 32 1989
* 5346950 Resin composition 42 1993
 
GENERAL ELECTRIC COMPANY (1)
* 4716199 Resin composition and articles formed therefrom 8 1986
 
BIOVALEUR SARL (1)
* 5326813 Thermoplastic resin composition containing a modified polyphenylene ether 36 1992
 
IDEMITSU KOSAN CO., LTD. (13)
* 5109068 Styrene-based polymer composition, stretched molding thereof and process for producing the same 40 1989
* 5200454 Flame-retardant resin composition 30 1990
* 5166238 Styrene-based resin composition 50 1990
* 5127158 Process for producing a printed circuit board with a syndiotactic polystyrene support 33 1990
* 5219940 Styrene polymer composition 44 1991
* 5270353 Resin composition 38 1991
* 5391603 Impact modified syndiotactic vinyl aromatic polymers 36 1993
* 5352727 Syndiotactic polystyrene composition 36 1993
* 5418275 Polystyrene composition 38 1993
* 5391611 Styrenic resin composition 41 1993
* 5444126 Process for producing a modified polyphenylene ether 30 1994
* 5436397 Polystyrene composition 37 1994
* 5543462 Impact resistant polystyrene composition 37 1994
 
BANK OF AMERICA, N.A. (1)
* 4386187 Thermoformable polymer blend composition comprising styrene polymer, olefin polymer and block copolymer 58 1981
 
Montedison S.p.A. (1)
* 4713416 Thermoplastic compositions including polyphenylenether, having improved impact strength and processability characteristics 26 1984
 
DOW CHEMICAL COMPANY, THE, (50%) (1)
* 5412024 Thermoplastic resin composition 42 1992
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
SABIC GLOBAL TECHNOLOGIES B.V. (1)
6849695 Piping material 2 2002
 
SABIC INNOVATIVE PLASTICS IP B.V. (4)
6894102 Syndiotactic polystyrene blends 9 2002
* 2003/0216,503 Syndiotactic polystyrene blends 0 2002
* 2007/0066,742 Reinforced styrenic resin composition, method, and article 5 2005
* 2007/0276,067 POLY(ARYLENE ETHER) COMPOSITION, METHOD, AND ARTICLE 0 2006
 
CHURCH & DWIGHT CO., INC. (2)
6288159 S-EB-S block copolymer/oil aqueous dispersion and its use in forming articles 16 1997
6414083 S-EB-S block copolymer/oil aqueous dispersion and its use in forming articles 5 2001
 
Nippon Zeon Co., Ltd. (3)
* 6365660 Resin composition and molded or formed product comprising vinyl cyclic hydrocarbon polymer 2 2000
6500899 Resin composition comprising vinyl cyclic hydrocarbon polymer 0 2001
6498215 Resin composition comprising vinyl cyclic hydrocarbon polymer and a compound having an alcoholic hydroxy group and an ester linkage 1 2001
 
FIRESTONE INDUSTRIAL PRODUCTS COMPANY, LLC (2)
* 2011/0210,486 RUBBER ARTICLES SUBJECTED TO REPEATED DEFORMATION AND COMPOSITIONS FOR MAKING THE SAME 0 2009
9382963 Rubber articles subjected to repeated deformation and compositions for making the same 0 2015
 
TEKNOR APEX COMPANY (1)
7196137 Polymer compositions 3 2002
 
KIMBERLY-CLARK WORLDWIDE, INC. (2)
7052642 Composition for forming an elastomeric article 5 2003
* 2004/0253,459 Composition for forming an elastomeric article 2 2003
 
AVENT, INC. (2)
7329442 Elastomeric gloves having improved donnability 3 2002
7178171 Elastomeric gloves having enhanced breathability 5 2002
 
SAMSUNG ATOFINA GMBH & CO. LTD. (4)
* 6767965 Method of preparing monomer-grafted syndiotactic polystyrene with polarity 0 2003
* 2003/0158,346 Method of preparing monomer-grafted syndiotactic polystyrene with polarity 0 2003
6780938 Reactor alloy of syndiotactic polystyrene having high impact resistance 1 2003
* 2003/0176,581 Reactor alloy of syndiotactic polystyrene having high impact resistance 0 2003
* Cited By Examiner