Method for producing thermoplastic elastomer powder

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6805822
APP PUB NO 20020053752A1
SERIAL NO

09951482

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for producing powder of a thermoplastic elastomer having a sphere-reduced average particle diameter of 700 .mu.m or less by an under water cut method which comprises discharging the thermoplastic elastomer in melt state through a plurality of orifice in a dice in into water, and cutting the discharged matter with a cutter blade rotating along the die surface to obtain powder of the thermoplastic elastomer, wherein the method satisfies the following conditions (a) and (b): (a) the temperature of the thermoplastic elastomer directly before the die is from 120 to 220.degree. C., and (b) the temperature of a die is from 230 to 350.degree. C.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SUMITOMO CHEMICAL COMPANY, LIMITEDOSAKA2387

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shimizu, Hikaru Ichihara, JP 8 25
Takei, Tsuyoshi Ichihara, JP 5 23

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SUMITOMO CHEMICAL COMPANY, LIMITED (2)
5840229 Method for producing molded article by powder slush molding a thermoplastic elastomer powder 11 1995
* 6335095 Powdery thermoplastic elastomer composition and articles obtained by molding same 8 1998
 
KURARAY CO., LTD. (1)
* 5265507 Process for producing pellets 11 1992
 
Kaneka Belgium N.N. (1)
5911928 Method for the production of polyolefin resin granules 5 1997
 
UNION CARBIDE CHEMICALS & PLASTICS TECHNOLOGY CORPORATION (1)
* 6426026 Process for pelletizing ultra-high melt flow polymers 10 1999
 
SUMIKA COLOR CO., LTD. (1)
* 6669986 Process for manufacturing multilayer pellets and use of the multilayer pellets 19 2000
 
Hermann Berstorff Maschinenbau GmbH (1)
* 5292240 Pelletizer with cutting knife control 8 1993
 
BAYER MATERIALSCIENCE LLC (3)
5525274 Process for manufacturing plastic microspheres 7 1994
5525284 Process for manufacturing plastic parts 17 1995
5998030 Material for manufacturing plastic parts 7 1997
 
BP CORPORATION NORTH AMERICA INC. (1)
* 6485664 Extrusion crystallization of an olefin polymer 2 2000
 
EXXON CHEMICAL PATENTS INC. (1)
* 5085815 Process of recovering and conveying shaped polymer extrudate 7 1989
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 2007/0112,139 Peroxide-cured thermoplastic vulcanizates and process for making the same 1 2005
* Cited By Examiner