# US 4,395,511 A · Heat sealable, flame and abrasion resistant coated fabric

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- Number: US 4,395,511 A
- Document ID: US4395511A
- Status: Granted
- Kind: A
- Application number: 06/241,155
- Filed: 1981-03-06
- Granted: 1983-07-26
- Earliest claimed: 1980-04-30
- Assignees: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Inventors: Richard P. Tschirch; Kenneth R. Sidman
- Web page: https://patentgrep.com/patent/US4395511A

## CPC

- D06M 15/564: Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
- C08K 5/06: Ethers; Acetals; Ketals; Ortho-esters
- C09J 175/04: Polyurethanes
- D06M 11/47: Oxides or hydroxides of elements of Groups 5 or 15 of the Periodic Table; Vanadates; Niobates; Tantalates; Arsenates; Antimonates; Bismuthates
- D06M 13/156: containing halogen atoms
- D06M 13/292: Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
- C08L 2666/28: Non-macromolecular organic substances
- C08L 2666/54: Inorganic substances
- D06M: TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

Flame retardant, abrasion resistant elastomeric compositions comprised of thermoplastic polyurethane polymer and flame retarding amounts of a filler selected from decabromodiphenyloxide and antimony oxide in a 3:1 weight ratio, and decabromodiphenyloxide, antimony oxide, and ammonium polyphosphate in a 3:1:3 weight ratio respectively. Also, flame retardant, abrasion resistant, and heat sealable coated fabrics employing such elastomeric compositions as coating film.

## Claims

### Claim 1

A flame retardant elastomeric composition for coating fabrics made from synthetic or natural fibers, the coating being flexible, abrasion resistant, and heat sealable, which elastomeric composition comprises from about 30 to about 60 percent by weight of a soluble, thermoplastic polyurethane and from about 70 to about 40 weight percent of a flame retardant additive selected from the group consisting of decabromodiphenyloxide and antimony oxide in a weight ratio of 3:1, respectively, and decabromodiphenyloxide, antimony oxide, and ammonium polyphosphate in a weight ratio of 3:1:3, respectively.

### Claim 2 (depends on 1)

The elastomeric composition of claim 1 wherein the soluble, thermoplastic polyurethane is a polyester type polyurethane.

### Claim 3 (depends on 1)

The elastomeric composition of claim 1 wherein there is about 30-50 percent by weight of the soluble thermoplastic polyurethane and about 70-50 percent by weight of the flame retardant additives.