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High productivity, low fugitive VOC emission foam process

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08J-009/04   
미국특허분류(USC) 521/097 ; 252/067 ; 252/069 ; 521/079 ; 521/098 ; 521/130 ; 521/131 ; 521/133 ; 521/146
출원번호 US-0941960 (1997-10-01)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Arnold White & Durkee
인용정보 피인용 횟수 : 3  인용 특허 : 13
초록
▼

A blowing agent for foaming polystyrene consisting essentially of at least one low permeability volatile organic compound, at least one low volatility non-volatile organic compound and, optionally, at least one high volatility non-volatile organic compound. In one embodiment, the low permeability volatile organic compound is selected from the group consisting of isopentane and isobutane, the low volatility non-volatile organic compound is acetone and the high volatility non-volatile organic compound is carbon dioxide. The blowing agent of the present inv...

대표
청구항
▼

[ What is claimed is:] [1.] A blowing agent for foaming polystyrene consisting essentially of:at least one low permeability compound, said low permeability compound having a permeability in said polystyrene lower than about 1.times.10.sup.-12 cc(STP)(cm)/((sec)(cm.sup.2)(cmHg)) and being classified as a volatile organic compound (VOC) by the Environmental Protection Agency (EPA);at least one low volatility compound, said low volatility compound having a boiling point higher than about 23.degree. C., selected from the group consisting of acetone, acetone/...

이 특허에 인용된 특허 (13)

  1. Werner Joachim (Bethel Park PA) Kane Scott A. (Wellsburg WV) Mortimer Charles E. (Tarentum PA) Doerge Herman P. (Pittsburgh PA) Boonstra Eric F. (Oakdale PA). Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 2-methyl butane. USP1996105562857.
  2. Lund ; deceased Earl August Eugene (late of West Seneca NY by Hilde Lund ; executrix ) Parker Robert Christian (Hamburg NY) Shankland Ian Robert (Williamsville NY). Azeotrope-like compositions of 1,1,1,3,3-pentaflurorpropane and hydrocarbons. USP1997095672294.
  3. Noel Gerard (Eupen BEX). Continuous extrusion of thermoplastic materials. USP1980044198363.
  4. Callens Julien N. R. (Merksem BEX) van Biesen Alfons J. S. (Opwijk BEX) Wolff Bernardo (Mannheim DEX) Alicke Gerhard (Worms DEX) Weber Reinhold (Mutterstadt DEX) Dietzen Franz-Josef (Ludwigshafen DEX. Foam boards produced using halogen-free blowing agents. USP1996115576094.
  5. Blythe James E. (Williamson NY) Colombo Edward A. (Penfield NY) Krutchen Charles M. (Pittsford NY) Williams Phillip A. (Naples NY) Wu Wen-Pao (Pittsford NY). High melt index polystyrene foam and method. USP1994025286429.
  6. Blythe James E. (Williamson NY) Colombo Edward A. (Penfield NY) Krutchen Charles M. (Pittsford NY) Williams Phillip A. (Naples NY) Wu Wen-Pao (Pittsford NY). High melt index polystytene foam and method. USP1994105356944.
  7. Johnson D. Emil (Canandaigua NY). Method and apparatus for extrusion of thermoplastic foam. USP1984094470938.
  8. Johnson D. Emil (Canandaigua NY) Krutchen Charles M. (Pittsford NY) Sharps ; Jr. G. Vincent (Fairport NY). Polymer foam extrusion system. USP1982084344710.
  9. Johnson D. Emil (Canandaigua NY) Krutchen Charles M. (Pittsford NY) Sharps ; Jr. G. Vincent (Fairport NY). Polymer foam process. USP1984014424287.
  10. Krutchen Charles M. (Pittsford NY) Wu Wen-Pao (Victor NY). Polymer foam thermoformation process and apparatus therefor. USP1984114485059.
  11. Komatsuzaki Nobuyuki (Koga JPX) Tsubone Masahiro (Koga JPX) Machida Bon (Koga JPX). Polystyrene foamed sheet suitable for forming. USP1985074528221.
  12. Alicke Gerhard (Worms DEX) Weilbacher Manfred (Frankenthal DEX) Wolff Bernardo (Mannheim DEX) Heinen Hartmut (Cologne DEX) Dietzen Franz-Josef (Ludwigshafen DEX) Weber Reinhold (Mutterstadt DEX) Hahn. Production of foam boards of high compressive strength from styrene polymers. USP1995095453454.
  13. Leduc Edward C. (Marietta GA). Styrenic foam blowing agent composition. USP1990094956395.

이 특허를 인용한 특허 피인용횟수: 3

  1. Wu Wen Pao ; Francis Gary A.. High productivity, low fugitive emission foams and foam processes. USP2000106136875.
  2. Handa,Y. Paul; Gu,Jiayan. Polyolefin foams made with isopentane-based blowing agents. USP2006057045556.
  3. Francis,Gary A.; Wu,Wen P.. Reduced VOC emission alkenyl aromatic polymer foams and processes. USP2007017166248.

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