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Class Information
Number: 521/914
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Polyurethane cellular product formed from a polyol which has been derived from at least two 1,2 epoxides as reactants
Description: Subject matter involving polyurethane cellular products derived from at least one polyether polyol which polyether polyol has been prepared from at least two 1, 2 alkylene oxides.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7307136 |
Polyurethane elastomers |
Dec. 11, 2007 |
| 7022746 |
Viscoelastic polyurethanes |
Apr. 4, 2006 |
| 6990913 |
Mulching process |
Jan. 31, 2006 |
| 6884824 |
Process for preparing an elastomer |
Apr. 26, 2005 |
| 6602450 |
Method for producing a thermally insulating plate |
Aug. 5, 2003 |
| 6563007 |
Preparation of polyetherols |
May. 13, 2003 |
| 6521674 |
Latex-like flexible polyurethane foam and process for making same |
Feb. 18, 2003 |
| 6420447 |
Viscoelastic damping foam having an adhesive surface |
Jul. 16, 2002 |
| 6337356 |
Production of sound-absorbing polyurethane foams having an adhesive surface |
Jan. 8, 2002 |
| 6335379 |
Flexible polyurethane foams |
Jan. 1, 2002 |
| 6326410 |
Wound dressing comprising polyurethane foam |
Dec. 4, 2001 |
| 6316514 |
Production of sound-damping and energy-absorbing polyurethane foams |
Nov. 13, 2001 |
| 6245825 |
Polyurethane foams |
Jun. 12, 2001 |
| 6201035 |
Use of low unsaturated polyether polyols in high resilience slabstock foam applications |
Mar. 13, 2001 |
| 6037382 |
Process for preparing a flexible polyurethane foam |
Mar. 14, 2000 |
| 5977198 |
Process for the production of resilient, flexible polyurethane foams |
Nov. 2, 1999 |
| 5925687 |
Production of flexible polyurethane foams |
Jul. 20, 1999 |
| 5889068 |
Water blown polyurethane soling systems |
Mar. 30, 1999 |
| 5863961 |
Flexible polyurethane foams and a process for the production thereof |
Jan. 26, 1999 |
| 5856372 |
Microcellular elastomers with improved processability and properties |
Jan. 5, 1999 |
| 5814676 |
Flexible polyurethane foams and a process for the production thereof |
Sep. 29, 1998 |
| 5700847 |
Molded polyurethane foam with enhanced physical properties |
Dec. 23, 1997 |
| 5686502 |
Water blown, hydrophilic, open cell polyurethane foams, method of making such foams and articles made therefrom |
Nov. 11, 1997 |
| 5677413 |
Polyurethane elastomers exhibiting improved demold green strength and water absorption and haze-free polyols suitable for their preparation |
Oct. 14, 1997 |
| 5652279 |
Polyether polyols suitable for flexible polyurethane foam prepared by co-initiation of aqueous solutions of solid polyhydroxyl initiators |
Jul. 29, 1997 |
| 5650450 |
Hydrophilic urethane foam |
Jul. 22, 1997 |
| 5643970 |
Method and apparatus for foam manufacture using carbon dioxide dissolved under pressure |
Jul. 1, 1997 |
| 5631319 |
Pressurized, blowing-agent-containing isocyanate semiprepolymer mixtures based on mixtures of polyhydroxyl compounds and monoalcohols and/or hydroxyketones, the use thereof for the production |
May. 20, 1997 |
| 5618967 |
Isocyanate composition |
Apr. 8, 1997 |
| 5594097 |
Polyether polyols |
Jan. 14, 1997 |
| 5565498 |
Process for making flexible foams |
Oct. 15, 1996 |
| 5534185 |
Process for the preparation of fluorochlorohydrocarbon-free low density polyurethane soft foams and soft elastic polyurethane molding foams and polyisocyanate mixtures modified with urethane g |
Jul. 9, 1996 |
| 5521226 |
Method of producing resilient polyoxyalkylene polyurethane foams |
May. 28, 1996 |
| 5459170 |
Polyurethane foams |
Oct. 17, 1995 |
| 5428077 |
Process for producing isocyanate-based foams |
Jun. 27, 1995 |
| 5420170 |
Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose |
May. 30, 1995 |
| 5418261 |
Polyurethane foams |
May. 23, 1995 |
| 5407968 |
Polyether polyols, water-curable polyurethane prepolymers based thereon, and compositions containing the prepolymers |
Apr. 18, 1995 |
| 5397811 |
Flexible polyurethane foams and process for preparing them |
Mar. 14, 1995 |
| 5374667 |
Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan gro |
Dec. 20, 1994 |
| 5369138 |
Preparation of flexible, molded, cold-cure polyurethane foams |
Nov. 29, 1994 |
| 5237036 |
Polyol components for the production of polyurethane mouldings |
Aug. 17, 1993 |
| 5227409 |
Removable polyurethane adhesive |
Jul. 13, 1993 |
| 5198473 |
Polyurethane foams of increased flame retardancy |
Mar. 30, 1993 |
| 5122548 |
Elastomeric polyisocyanate-based polymers from polyoxyalkylene polyols containing internal polyoxyethylene blocks |
Jun. 16, 1992 |
| 5100926 |
Process for producing polyurethane |
Mar. 31, 1992 |
| 5079276 |
Method of manufacturing polyurethane foam |
Jan. 7, 1992 |
| 5063253 |
Process for the production of cold-setting flexible polyurethane foams with excellent damping properties |
Nov. 5, 1991 |
| 5059633 |
Preparation of flexible polyurethane foams having low compressive strength and block polyoxypropylenepolyoxyethylenepolyol mixtures which can be used for this purpose |
Oct. 22, 1991 |
| 5049638 |
Prepolymer composition utilizing polyol combination for production of coatings and films |
Sep. 17, 1991 |
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