Patent ID: 9447523
Filing Date: 2016-09-20
CPC Classification: C08G,C08K,D01D,D01F,D04H,D10B,F02B,Y10T

Claim Text:
1. A process comprising: (a) providing a thermoplastic polymer material comprising at least one or a plurality of polyester polymers and at least one or a combination of different meltable metal phosphinates; (b) melt blowing the thermoplastic polymer material into at least one fiber; and (c) heating the at least one fiber to a temperature equal to or above the glass transition temperature (T wherein the metal phosphinate is in an amount that at least promotes crystallization of the polyester polymer, when the thermoplastic polymer material is melt blown into the at least one fiber, and the polyester polymer of the at least one fiber is at least partially crystalline.