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특허 상세정보

Products for controlling evaporative moisture loss and methods of manufacturing the same

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C09K-003/00    C01B-031/16   
미국특허분류(USC) 252/194 ; 252/184
출원번호 US-0478259 (2000-01-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Balogh
인용정보 피인용 횟수 : 1  인용 특허 : 9
초록

The present invention is directed towards compositions which contain a crosslinked absorbent polymer and a water soluble low molecular weight compound. The water soluble low molecular weight compound reduces the rate at which water evaporates from the crosslinked absorbent polymer. The crosslinked absorbent polymers of this invention have a water retention value greater than or equal to about 6. This invention also is directed towards methods for preparing the compositions of this invention.

대표
청구항

[ What is claimed is:] [1.]1. An absorbent composition consisting essentially of about 1 part by weight of a crosslinked absorbent polymer, between about 1.5 to 60 parts by weight of a low molecular weight carbohydrate polymer, and about 0.2 parts by weight to 30 parts by weight of a water soluble low molecular weight compound having a molecular weight less than about 600 wherein said crosslinked absorbent polymer is characterized by: a water retention value greater than about 6 grams of water per gram of polymer; being at least about 90% water insoluble...

이 특허에 인용된 특허 (9)

  1. Girg Friedrich (Idstein DEX) Bhme-Kovac Jozef (Dexheim DEX). Building material products containing organic polymers as thickeners. USP1995075432215.
  2. Bews Brian (Isleworth GB2) Critchley Peter (Camberley GB2) Durrant James A. (Bedfont GB2) Stebles Malcolm R. D. (Maidenhead GB2) Tipping Leigh R. H. (Twickenham GB2). Deodorant compositions. USP1987044659560.
  3. Gross James R. (Appleton WI) Greuel Michael P. (Akron OH). Method for making absorbent starch. USP1992015079354.
  4. Qin Jian (Appleton WI) Gross James R. (Appleton WI) Mui William J. (Neenah WI) Ning Xin (Appleton WI) Schroeder Wen Z. (Appleton WI) Sun Tong (Neenah WI). Modified polysaccharides having improved absorbent properties and process for the preparation thereof. USP1996085550189.
  5. Lerailler Eric (Lognes FRX) Pierre Michel (Mulhouse FRX) Thiriet Bernard (Juvisy s/Orge FRX) Wacquez Jean (Courbevoie FRX). Process for preparing a liquid-absorbing composition. USP1989114883478.
  6. Levy Richard (Fort Myers FL). Terrestrial delivery compositions and methods for controlling insect and habitat-associated pest populations in terrestr. USP1991014983390.
  7. Goldberg Harris A. (Edison NJ) Pickton Joseph M. (New Providence NJ) DiBiase Joseph J. (Nazareth PA) Ryans William T. (Huntersville NC). Vibration damping superabsorbent composites. USP1995125472761.
  8. Hicks Robert David ; Mills Jane Elisabeth ; Hsu Whei-Neen. Water additive and method for fire prevention and fire extinguishing. USP1999115989446.
  9. Engelhardt Fritz ; Funk Rudiger,DEX ; Herfert Norbert,DEX ; Weismantel Matthias,DEX. Water-swellable, hydrophilic polymer compositions. USP2000086107432.