Melt blown fiber forming process and method of making fibrous structures
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United States of America Patent
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Sep 20, 2016
Grant Date -
May 7, 2015
app pub date -
Dec 20, 2012
filing date -
Dec 22, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A melt blowing process comprising: (a) providing a thermoplastic polymer material that includes at least one or a plurality of polyester polymers and at least one or a combination of different meltable metal phosphinates; and (b) melt blowing the thermoplastic polymer material into at least one fiber or a plurality of fibers, with each fiber having a diameter or thickness that is less than about 10 microns. The metal phosphinate is in an amount that (a) reduces the viscosity of the polyester polymer and (b) functions as a crystallizing agent, which at least promotes crystallization of the polyester polymer, when the thermoplastic polymer material is melt blown into the at least one fiber. Non-woven and woven fibrous structures can be made using fibers made from this process.
First Claim
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- D01D:MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE....
- C07F:ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CO....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- D01F:CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL....
- D04H:MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAME....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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