US4070332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame retardant, non-dripping, shape-retaining polyester molding composition
Assignee: Toray Industries Inc
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Filing: 1976-11-10
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Granted: 1978-01-24
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Expires: 1996-11-10
Abstract
Abstract A flame retardant, non-dripping, shape-retaining thermoplastic polyester resin is disclosed comprising (a) a linear polyester, (b) a halogenated aromatic compound, (c) a zirconium compound, preferably in combination with antimony trioxide, and (d) a fibrous reinforcing agent.
Inventors
- 👤 Masanobu Morikawa
- 👤 Toshikazu Aoyama
- 👤 Miyoji Yada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; C08K5/03; C08K13/00; C08K13/02; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/24; C08K3/28; C08K5/04; C08K5/06; C08K5/10; C08K5/36; C08K5/41; C08K5/49; C08K5/51; C08K5/53; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
60 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin comprising about 100 parts by weight of a linear polyester, about 5 to 25 parts by weight of a halogenated aromatic compound, about 1 to 20 parts by weight of antimony trioxide, and about 1 to 20 parts by weight of a zirconium compound containing a substantial and effective proportion of zirconium oxide.
Claim 2
Dependent Claim
60 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin comprising about 100 parts by weight of a linear polyester, about 5 to 25 parts by weight of a halogenated aromatic compound, about 1 to 20 parts by weight of antimony trioxide, and about 1 to 20 parts by weight of a zirconium compound containing a substantial and effective proportion of zirconium oxide.
Claim 3
Dependent Claim
39 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin of claim 1, wherein the zirconium compound is selected from the group consisting of zirconium oxide and the calcination products of zirconium hydroxide, ammonium zirconate, titanium zirconate, calcium zirconate and zinc zirconate.
Claim 4
Dependent Claim
19 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin of claim 1, wherein the zirconium compound consists essentially of zirconium dioxide.
Claim 5
Dependent Claim
31 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin of claim 1, wherein the amount of the zirconium compound is about 3 to 15% by weight, based upon the weight of the polyester.
Claim 6
Dependent Claim
24 words
A flame-retardant, thermoplastic polyester resin of claim 1, wherein the zirconium compound and the antimony trioxide are present in the form of a solid-solution.
Claim 7
Dependent Claim
22 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin of claim 1, containing up to 70 parts by weight of a fibrous reinforcing agent.
Claim 8
Dependent Claim
26 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin of claim 6, wherein the amount of the fibrous reinforcing agent is about 5 to 50 parts by weight.
Claim 9
Dependent Claim
27 words
A flame-retardant, non-dripping, shape-retaining thermoplastic polyester resin of claim 6, wherein the fibrous reinforcing agent is selected from the group consisting of glass fibers and abestos fibers.
Claim 10
Dependent Claim
21 words
A flame-retardant, thermoplastic polyester resin of claim 1, further containing up to 70 parts by weight of a fibrous reinforcing agents.
Claim 11
Dependent Claim
24 words
A flame-retardant, thermoplastic polyester resin of claim 4, wherein the amount of the fibrous reinforcing agent is about 5 to 50 parts by weight.
Claim 12
Dependent Claim
25 words
A flame-retardant, thermoplastic polyester resin of claim 6, wherein the fibrous reinforcing agent is selected from the group consisting of glass fibers and abestos fibers.
Claim 13
Dependent Claim
19 words
The flame-retardant, thermoplastic polyester resin of claim 1, wherein said zirconium compound contains about 60 to 100% zirconium dioxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |