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Class Information
Number: 521/909
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Blowing-agent moderator, e.g., kickers, etc.
Description: Subject matter involving an agent which is not generally by itself a blowing agent and which retards, modifies, accelerates, or in other manner affects the blowing characteristics of utilized blowing agent.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6914085 |
Expanded polypropylene granule composition |
Jul. 5, 2005 |
| 6746625 |
Surface treated embossing catalyst and the use thereof |
Jun. 8, 2004 |
| 5605647 |
Fluoroiodocarbon blends as CFC and halon replacements |
Feb. 25, 1997 |
| 5562861 |
Fluoroiodocarbon blends as CFC and halon replacements |
Oct. 8, 1996 |
| 5539006 |
Rigid foams with improved insulation and physical properties |
Jul. 23, 1996 |
| 5439948 |
Process for cellular polymeric products |
Aug. 8, 1995 |
| 5194325 |
Molded polyurethane foam system utilizing HFC blowing agents |
Mar. 16, 1993 |
| 5059631 |
Extruded ethylenic polymer foam containing both open and closed cells |
Oct. 22, 1991 |
| 4931478 |
Process for the preparation of an expandable vinyl plastisol |
Jun. 5, 1990 |
| 4879138 |
Composition for plastic article with unitarily molded foam layer |
Nov. 7, 1989 |
| 4866100 |
Composition for plastic article with unitarily molded foam layer |
Sep. 12, 1989 |
| 4777188 |
Process for producing foamed elastomeric compositions |
Oct. 11, 1988 |
| 4728675 |
Modified flame retardant polyphenylene ether resins having improved foamability and molded articles made therefrom |
Mar. 1, 1988 |
| 4728673 |
Process for the foaming of thermoplastics containing ester and/or carbonate groups |
Mar. 1, 1988 |
| 4714568 |
New blowing agent combination based on azodicarbonamide, production thereof and use thereof for foaming polymers |
Dec. 22, 1987 |
| 4698370 |
Production of phenolic resin composite foam |
Oct. 6, 1987 |
| 4693772 |
Hot applied, expandable sealer |
Sep. 15, 1987 |
| 4692475 |
Blowing agent composition |
Sep. 8, 1987 |
| 4680316 |
Hot applied, expandable sealer |
Jul. 14, 1987 |
| 4655962 |
Blowing agent composition |
Apr. 7, 1987 |
| 4634721 |
Nitro-urea based blowing agents |
Jan. 6, 1987 |
| 4585802 |
Nitro urea based blowing agents |
Apr. 29, 1986 |
| 4554294 |
Nitro urea based blowing agents |
Nov. 19, 1985 |
| 4482650 |
Blowing agent compositions |
Nov. 13, 1984 |
| 4480054 |
Foamable polymer blend compositions |
Oct. 30, 1984 |
| 4472536 |
Blowing agent compositions |
Sep. 18, 1984 |
| 4446254 |
Crosslinked polyolefin foam containing a high concentration of an inorganic material and process for producing the same |
May. 1, 1984 |
| 4444679 |
Blowing agent compositions |
Apr. 24, 1984 |
| 4438223 |
Blowing agent composition containing zinc formate and metal salt activator |
Mar. 20, 1984 |
| 4425442 |
Process for producing open cell foam and foamable compound |
Jan. 10, 1984 |
| 4421561 |
Water based ink compositions using organic acid |
Dec. 20, 1983 |
| 4413065 |
Process for making low density chlorinated polyvinyl chloride foam |
Nov. 1, 1983 |
| 4403045 |
Alkali metal borohydride concentrate |
Sep. 6, 1983 |
| 4399238 |
Alkali metal borohydride concentrate |
Aug. 16, 1983 |
| 4397948 |
Alkali metal borohydride concentrate |
Aug. 9, 1983 |
| 4394288 |
Activated ammonium nitrate plastic foam blowing agent |
Jul. 19, 1983 |
| 4394458 |
Alkali metal borohydride concentrate |
Jul. 19, 1983 |
| 4394460 |
Ethylene-chlorotrifluoroethylene copolymer foam |
Jul. 19, 1983 |
| 4394459 |
Fast-curing foamable composition based on ethylene terpolymers |
Jul. 19, 1983 |
| 4387170 |
Process for the production of foamed materials from polyolefins |
Jun. 7, 1983 |
| 4384048 |
Chemical blowing agent |
May. 17, 1983 |
| 4383048 |
Process for making low density chlorinated polyvinyl chloride foam |
May. 10, 1983 |
| 4370286 |
Chlorinated polyvinyl chloride composition |
Jan. 25, 1983 |
| 4369126 |
Chemical blowing agent |
Jan. 18, 1983 |
| 4360602 |
Foamed chlorinated polyvinyl chloride and compositions for making same |
Nov. 23, 1982 |
| 4312776 |
Blowing agent compositions |
Jan. 26, 1982 |
| 4298706 |
Foams prepared from polypropylene resin composition and process for producing same |
Nov. 3, 1981 |
| 4273880 |
Foamed polyethylene films |
Jun. 16, 1981 |
| 4266041 |
Process for the production of foamed plastics from polyolefins |
May. 5, 1981 |
| 4259453 |
Activation of blowing agents |
Mar. 31, 1981 |
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