Claimed Artificial Hair Fibers With Flame Retardant

1

Pre-Compounded Materials and Extracted Flame Retardant

2

Pre-Compounded Materials

Finished Fibers

Hair Fiber ProcessingPET (Polyester)

Flame Retardant

Claim 1 of the ’429 Patent

3

’429 PatentThe invention claimed is:1. A flame retardant polyester artificial hair, comprising

100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or copolymer polyester, which comprises polyalkylene terephthalate as a main component, and [5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant—including impurities ordinarily associated with polymer chemistry related to flame retardants—having a repeating unit represented by]:

wherein m represents 30 to 150, and having a monofilament size of 30 to 80 dtex.

PTX 0001, ’429 Patent, Claim 1

Claim 1 of the ’430 Patent

4

’430 Patent

DTX1002, ’430 Patent, Claim 1

The invention claimed is:1. A hair product comprising flame retardant polyester

fiber and [60% or less‒but more than 0%‒of human hair], the fiber comprising 100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or copolymer polyester, which comprises polyalkylene terephthalate as a main component, and [5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant—including impurities ordinarily associated with polymer chemistry related to flame retardants—having a repeating unit represented by]:

wherein the hair product is selected from a wig, a hair wig and a hair extension.

Artificial Hair Fibers Are Comprised of Polymeric Materials

5

Polyester Polymers

Flame Retardant Polymers

Fiber

Wig

Brominated Epoxy Flame Retardants Are Polymeric Materials

6

Fiber

degree of polymerization = number of beads in one moleculemolecular weight = weight of all beads in one molecule

c

Monomers React to Form Polymer Molecules

7

monomerspolymermolecule

Claim 1 of the ’429 Patent

8

’429 PatentThe invention claimed is:1. A flame retardant polyester artificial hair, comprising

100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or copolymer polyester, which comprises polyalkylene terephthalate as a main component, and [5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant—including impurities ordinarily associated with polymer chemistry related to flame retardants—having a repeating unit represented by]:

wherein m represents 30 to 150, and having a monofilament size of 30 to 80 dtex.

PTX 0001, ’429 Patent, Claim 1

Pre-Compounded Flame Retardant

Extracted Flame Retardant

Fiber Processing

Polyesters Are All Around Us

’429 Patent

The invention claimed is:1. A flame retardant polyester artificial hair, comprising

100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or copolymer polyester, which comprises polyalkylene terephthalate as a main component, and [5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant—including impurities ordinarily associated with polymer chemistry related to flame retardants—having a repeating unit represented by]:

wherein m represents 30 to 150, and having a monofilament size of 30 to 80 dtex.

(including PET and PBT)

PTX 0001, ’429 Patent, Claim 1

9

Brominated Epoxy Flame Retardants Are Common

’429 Patent

The invention claimed is:1. A flame retardant polyester artificial hair, comprising

100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or copolymer polyester, which comprises polyalkylene terephthalate as a main component, and [5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant—including impurities ordinarily associated with polymer chemistry related to flame retardants—having a repeating unit represented by]:

wherein m represents 30 to 150, and having a monofilament size of 30 to 80 dtex.

PTX 0001, ’429 Patent, Claim 1

5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant

10

’429 Patent

Kaneka’s Patents Claim a Linear Flame Retardant

11

The invention claimed is:1. A flame retardant polyester artificial hair, comprising

100 parts by weight of (A) a polyester made of one or more of polyalkylene terephthalate or copolymer polyester, which comprises polyalkylene terephthalate as a main component, and [5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant—including impurities ordinarily associated with polymer chemistry related to flame retardants—having a repeating unit represented by]:

wherein m represents 30 to 150, and having a monofilament size of 30 to 80 dtex.

Linear, counted towards 5 to 30 parts by weight

Branched, NOT counted towards 5 to 30parts by weight

CLAIMED

NOT CLAIMED

PTX 0001, ’429 Patent, Claim 1

[5 to 30 parts by weight of (B) a linear tetrabrominated epoxy flame retardant…]

The Flame Retardant in FireblockIs More Branched After Processing

12

4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6-1.4

-1.2

-1

-0.8

-0.6

-0.4

-0.2

0

4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6-1.4

-1.2

-1

-0.8

-0.6

-0.4

-0.2

0

molecular weight

visc

osi

ty

Increased Branching:

Extracted Fireblock Flame Retardant

Pre-Compounded Blend

4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6-1.4

-1.2

-1

-0.8

-0.6

-0.4

-0.2

0

The Flame Retardant in FireblockIs Extensively Branched

13

Linear

molecular weight

visc

osi

ty

Branched: Extracted Fireblock

Flame Retardant

4.5 5.0 5.5 6.0-2.22044604925031E-16

0.0999999999999998

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

1.1

1.2

1.3

1.4

Branching Index Shows Extent of Branching in Fireblock

14

molecular weight

Branched: Extracted Fireblock

Flame Retardant

Linear

g’

more branchedbranched