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Class Information
Number: 521/120
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. > Cellular product formation prior to or during solid polymer formation in the presence of a stated ingredient other than water > Ingredient contains a sulfur atom
Description: Subject matter wherein the stated ingredient contains a sulfur atom.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6906110 |
Method for the production of polyurethanes |
Jun. 14, 2005 |
| 6894082 |
Foamable compositions |
May. 17, 2005 |
| 6660780 |
Molecularly-imprinted material made by template-directed synthesis |
Dec. 9, 2003 |
| 6610756 |
Inorganic/organic composite foam and process for producing the same |
Aug. 26, 2003 |
| 6583191 |
Molecularly-imprinted material made by template-directed synthesis |
Jun. 24, 2003 |
| 6310110 |
Molecularly-imprinted material made by template-directed synthesis |
Oct. 30, 2001 |
| 6211259 |
Low volatile reinforcing system |
Apr. 3, 2001 |
| 6169124 |
Inner parting agents for producing self-parting moldings made of polyisocyanate polyaddition products |
Jan. 2, 2001 |
| 6136870 |
Modified rebond polyurethane foam structure and method of making such structure |
Oct. 24, 2000 |
| 5880165 |
Modified rebond polyurethane foam structure and method of making such structure |
Mar. 9, 1999 |
| 5721281 |
Flame retardant porous plastics |
Feb. 24, 1998 |
| 5719200 |
Flame-resistant polyurea foam |
Feb. 17, 1998 |
| 5710190 |
Soy protein-based thermoplastic composition for foamed articles |
Jan. 20, 1998 |
| 5605721 |
Shock absorbing underlayment for artificial playing surfaces |
Feb. 25, 1997 |
| 5561170 |
Preparation of expandable thermoplastic polymers by post-impregnation |
Oct. 1, 1996 |
| 5514722 |
Shock absorbingg underlayment for artificial playing surfaces |
May. 7, 1996 |
| 5403655 |
Toughened thermosetting resin composites and process |
Apr. 4, 1995 |
| 5401785 |
Foamed polyurethane-forming composition, foamed polyurethane and process making the same |
Mar. 28, 1995 |
| 5373028 |
Polyurethane foams having reduced visible emissions during curing |
Dec. 13, 1994 |
| 5317033 |
Process for producing synthetic resin foam |
May. 31, 1994 |
| 5312845 |
Rim polyol blends containing acidic siloxane internal mold release agents and tin catalysts |
May. 17, 1994 |
| 5256703 |
Abrasive propellant for cleaning of surfaces and machinery |
Oct. 26, 1993 |
| 5234964 |
Microcellular polyurethane elastomers |
Aug. 10, 1993 |
| 5173559 |
Reactive systems and a process for the preparation of polyurethane plastics |
Dec. 22, 1992 |
| 5118722 |
Method of producing elastic foams having a base of polyurethane by microwave foaming |
Jun. 2, 1992 |
| 5112876 |
Polyether polyol and rigid polyurethane foam |
May. 12, 1992 |
| 5106684 |
Foam sheets of high heat distortion resistance |
Apr. 21, 1992 |
| 5096623 |
Process and composition for producing flame retardant rebonded foam products |
Mar. 17, 1992 |
| 5057546 |
Semi-flexible or flexible phenolic foam composition |
Oct. 15, 1991 |
| 5023280 |
Process for the production of polyurethane foams |
Jun. 11, 1991 |
| 5019599 |
Deodorizing urethane foam and process for its production |
May. 28, 1991 |
| 4977194 |
Process for the preparation of polyurethane foams |
Dec. 11, 1990 |
| 4972002 |
Process for producing cellular plastics by the polyisocyanate polyaddition method by means of stable emulsions containing blowing agents, and such emulsions |
Nov. 20, 1990 |
| 4968724 |
Hydrated salt systems for controlled release of water in polyurethane foams |
Nov. 6, 1990 |
| 4908161 |
Fire retardant for isocyanate-based foams comprising ammonium sulfate and a cyanuric acid derivative |
Mar. 13, 1990 |
| 4895878 |
Flexible polyurethane foam having a high fire resistance |
Jan. 23, 1990 |
| 4888371 |
Bis(2,6-dis-tert-butyl-4-branched propyl or butyl phenyl)-pentaerythritol spiro phosphites and synthetic resin compositions containing such phosphites |
Dec. 19, 1989 |
| 4861805 |
Antistatic polyurethane shoe sole compositions |
Aug. 29, 1989 |
| 4772638 |
Compositions having reduced smoke emission |
Sep. 20, 1988 |
| 4769396 |
Process for the production of cellular organic silicate products |
Sep. 6, 1988 |
| 4695595 |
Process for the production of cellular organic silicate products |
Sep. 22, 1987 |
| 4654375 |
Fire-retardant polyurethane foam and method and resin for preparing the same |
Mar. 31, 1987 |
| 4618630 |
Organic polymer composition containing an antistatic agent comprising a nonvolatile ionizable metal salt and a salt or ester of a carboxylic acid |
Oct. 21, 1986 |
| 4608399 |
Stabilizer-containing reactive components for pu-foams, new stabilizers and a process for producing these stabilizers |
Aug. 26, 1986 |
| 4596835 |
Reinforced cellular or noncellular polyurethane molded parts |
Jun. 24, 1986 |
| 4575518 |
Homogeneous storage stable salt-containing mixture |
Mar. 11, 1986 |
| 4544678 |
Filled or extended polyurethane foam containing polyethylene glycol softening agent |
Oct. 1, 1985 |
| 4537913 |
Method of preparing a urea-formaldehyde combination foam that is low in formaldehyde |
Aug. 27, 1985 |
| 4511678 |
Resilient foam based on a melamine-formaldehyde condensate |
Apr. 16, 1985 |
| 4506035 |
Microporous hydrophilic fluoropolymer membranes and method |
Mar. 19, 1985 |
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