Flame-retardant molded component

Details Flame-retardant molded component Flame-retardant molded component

2002-06-25

2004-12-07

Szekely, Peter (Department: 1714)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S123000, C524S125000, C524S130000, C524S131000

Reexamination Certificate

active

06828365

ABSTRACT:

FIELD OF THE INVENTION
This invention is concerned with a flame-retardant molded component. The invention is particularly applicable to monofilaments for formation into braided sleeves used to protect electrical wires or pipes.
BACKGROUND OF THE INVENTION
It is well-known to form molded components from polymers such as nylon 6. For example, braided sleeves used for protecting wires or pipe from abrasion damage, for example, in an engine compartment of a vehicle, are often formed from monofilaments of nylon 6. The monofilaments have a diameter of about 0.25 mm to about 3.25 mm.
It is also well-known to provide polyamides, e.g., nylon 6 or nylon 66, or other polymers with flame-retardancy properties by filling them with flame-retardant materials. Typical applications include molded containers for electrical equipment and coatings for electrical wires. Melamine cyanurate is a known flame-retardant filler for use in polyamides for such applications. In the event of fire, the melamine cyanurate decomposes giving off flame-retardant gases. However, as the proportion of melamine cyanurate increases, the flexibility and surface quality of the material decreases making the material prone to cracking. For this reason, providing sufficient melamine cyanurate for the required flame-retardancy renders the material unsuitable for many uses, for example, for forming into the above-mentioned monofilaments. For this reason, the protective sleeves referred to above are not formed from flame-retardant monofilaments despite the obvious fire risks present in engine compartments.
Polyphosphonates are known as flame-retardant fillers in some polymeric matrices. However, they are not effective enough when used alone to enable a molded component to pass flame-retardancy tests.
SUMMARY AND OBJECTS OF THE INVENTION
It is an object of the present invention to provide a flame-retardant molded component which combines good flame-retardancy properties with good flexibility and good surface quality.


REFERENCES:
patent: 4035442 (1977-07-01), Dunworth
patent: 4072658 (1978-02-01), Okamoto et al.
patent: 4151322 (1979-04-01), Rosenthal et al.
patent: 4257931 (1981-03-01), Granzow
patent: 4459386 (1984-07-01), Grundmann
patent: 4788259 (1988-11-01), Nielinger et al.
patent: 4866114 (1989-09-01), Taubitz et al.
patent: 5331030 (1994-07-01), Cipolli et al.
patent: 5837760 (1998-11-01), Hackl et al.
patent: 5859147 (1999-01-01), Dalla Torre et al.
patent: 6007898 (1999-12-01), Kim et al.
patent: 0 005 329 (1979-11-01), None
patent: 0 324 356 (1989-07-01), None
patent: 0 530 874 (1993-03-01), None
patent: 0 617 079 (1994-09-01), None
patent: WO 96/30441 (1996-10-01), None
Patent Abstracts of Japan, vol. 095, No. 004, May 31, 1995 & JP 07 003134 A (Toray Ind Inc.), Jan. 6, 1995.
Patent Abstracts of Japan, vol. 096, No. 003, Mar. 29, 1996 & JP 07 300562 A (Toray Ind Inc.), Nov. 14, 1995.
Patent Abstracts of Japan, vol. 18, No. 182 (C-1184), Mar. 29, 1994 & JP 05 339417 A (Asahi), Dec. 21, 1993.

Affiliated with

Also associated with

Rating

Flame-retardant molded component does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flame-retardant molded component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flame-retardant molded component will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3330101