Process of making flame retarding polypropylene fiber

Details Process of making flame retarding polypropylene fiber Process of making flame retarding polypropylene fiber

2005-07-26

2005-07-26

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

With twining, plying, braiding, or textile fabric formation

C264S172150, C264S210500, C264S210600, C264S210800

Reexamination Certificate

active

06921504

ABSTRACT:
A method for producing a flame retarding polypropylene fiber having both good flame retardancy and good fiber strength, and which generates no toxic gas, includes mixing 0.4% by wt. or more of a hindered amine-based stabilizer and 0.5% by wt. or more of a phosphoric ester-based flame retardant with a polypropylene resin having an MPR of 5 to 50 g/10 min, melt-spinning the mixture to form an undrawn yarn, drafting the yarn at a drafting magnification of 2 to 7 fold and a drafting temperature of 50 to 100° C., and further thermally setting at 60 to 140° C.

REFERENCES:
patent: 5393812 (1995-02-01), Haley et al.
patent: 6472456 (2002-10-01), Horsey et al.
patent: 7-102128 (1995-04-01), None
patent: 9-310048 (1997-12-01), None
patent: 11-60837 (1999-03-01), None
patent: WO 99/00450 (1999-01-01), None
Abstract, “Cross-linkable and Highly Flame-Retardant Composition Excellent in Heat Resistance.” Inventor: Hideo et al., JP 7-102128, Publication Date: Apr. 18, 1995.
Abstract, “Polyolefin-based Flame Resistant Adhesive Type,” Inventor: Ryuichi, JP 9-310048, Publication Date: Dec. 2, 1997.
Abstract, “Flame-Retardant Polypropylene Compound, Its Production and Stampable Sheet and Molded Stampable Sheet.” Inventor: Masahiki et al., JP11-060837, Publication Date: Mar. 5, 1999.

Affiliated with

Also associated with

Rating

Process of making flame retarding polypropylene fiber does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process of making flame retarding polypropylene fiber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process of making flame retarding polypropylene fiber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3406700