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Class Information
Number: 521/907
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Nonurethane flameproofed cellular product
Description: Subject matter involving a nonpolyurethane cellular product having specific flameproof properties.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7005457 |
Multi-functional microencapsulated additives for polymeric compositions |
Feb. 28, 2006 |
| 6822023 |
Flame retardant polyolefin resin pre-expanded particles and in-mold foamed articles prepared therefrom |
Nov. 23, 2004 |
| 6710094 |
Processes for preparing patterns for use in metal castings |
Mar. 23, 2004 |
| 6555591 |
Foam cross-linked with metal salt and process for production |
Apr. 29, 2003 |
| 6420442 |
Flame-proofed polystyrene foamed materials |
Jul. 16, 2002 |
| 6340713 |
Expandable styrene polymers containing graphite particles |
Jan. 22, 2002 |
| 6303664 |
Treatment for reducing residual carbon in the lost foam process |
Oct. 16, 2001 |
| 6162855 |
Bauxite filler for carpet backings |
Dec. 19, 2000 |
| 6130267 |
Fire retardant compositions |
Oct. 10, 2000 |
| 6084002 |
Flame retardant silicone foams |
Jul. 4, 2000 |
| 6010565 |
Foamed material for fireproofing and/or insulating |
Jan. 4, 2000 |
| 5719199 |
Flame retardant flexible foam |
Feb. 17, 1998 |
| 5650448 |
Flame retardant flexible foam |
Jul. 22, 1997 |
| 5518807 |
Pyrotechnic sheet material |
May. 21, 1996 |
| 5514726 |
Polymer foams with inherent nonflammability and thermal stability and methods of preparation thereof |
May. 7, 1996 |
| 5508321 |
Intumescent silicone rubber composition |
Apr. 16, 1996 |
| 5438079 |
Method for reducing the melt flow rate of flame retardant expanded polystyrene |
Aug. 1, 1995 |
| 5302625 |
Method for reducing the melt flow rate of flame retardant expanded polystyrene |
Apr. 12, 1994 |
| 5175197 |
Water-based intumescent fire barrier caulk |
Dec. 29, 1992 |
| 5173515 |
Fire retardant foams comprising expandable graphite, amine salts and phosphorous polyols |
Dec. 22, 1992 |
| 5171757 |
Fire resistant vinylaromatic foams |
Dec. 15, 1992 |
| 5149725 |
Flexible polyurethane foams with reduced dripping during burning |
Sep. 22, 1992 |
| 5137937 |
Flame retardant thermoplastic resin composition with intumescent flame retardant |
Aug. 11, 1992 |
| 5124363 |
Aqueous air foams of polyhydroxy polymer |
Jun. 23, 1992 |
| 5112875 |
Polystyrene having high degree of expandability, and formulation having a highly-expandable polymer therein |
May. 12, 1992 |
| 5108832 |
Flexible intumescent coating composition |
Apr. 28, 1992 |
| 5075413 |
Resorcinol-modified phenolic resin binder for reinforced plastics |
Dec. 24, 1991 |
| 5075414 |
Resorcinol-modified phenolic resin binder for reinforced plastics |
Dec. 24, 1991 |
| 5070119 |
Flexible intumescent coating composition |
Dec. 3, 1991 |
| 5064868 |
Sprayable lightweight ablative coating |
Nov. 12, 1991 |
| 5059637 |
Endothermic fire protective material |
Oct. 22, 1991 |
| 5051452 |
Process for preparing foamed vinylaromatic polymer products |
Sep. 24, 1991 |
| 5047449 |
Fire protection material |
Sep. 10, 1991 |
| 5030663 |
Process for the preparation of fire-retardant expandable thermoplastic beads |
Jul. 9, 1991 |
| 5026735 |
Treatment of hazardous materials with aqueous air foam of polyhydroxy polymer |
Jun. 25, 1991 |
| 5010111 |
Flame resistant, expandable styrene polymers and foams, and flame retardants |
Apr. 23, 1991 |
| 4994499 |
Method of adding flame retardant to vinyl aromatic polymers made in a one-step process |
Feb. 19, 1991 |
| 4992482 |
Polyphenylene ether - alkenyl aromatic polymer blends having organobromine additives |
Feb. 12, 1991 |
| 4980382 |
Process for the preparation of expandable vinyl aromatic polymer particles containing hexabromocyclododecane |
Dec. 25, 1990 |
| 4973610 |
Expandable styrene polymers |
Nov. 27, 1990 |
| 4962132 |
Method of improving foam fire resistance through the introduction of inorganic particles thereinto |
Oct. 9, 1990 |
| 4952428 |
Flame retardant compositions |
Aug. 28, 1990 |
| 4942069 |
Flame retardant compositions |
Jul. 17, 1990 |
| 4940844 |
Polyol-alkali metal silicate emulsion |
Jul. 10, 1990 |
| 4889875 |
Phenolic resin foams of high filler content and their use as insulation |
Dec. 26, 1989 |
| 4879320 |
Intumescent fire-retardant coating material |
Nov. 7, 1989 |
| 4876291 |
Mineral filler fire retardant composition and method |
Oct. 24, 1989 |
| 4871477 |
Fire protected foamed polymeric materials |
Oct. 3, 1989 |
| 4870112 |
Foamable, gelable and heat vulcanizable composition of matter for the the manufacture of latex foam |
Sep. 26, 1989 |
| 4842772 |
Fire retardant pigment |
Jun. 27, 1989 |
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