Claimed Artificial Hair Fibers
With Flame Retardant
1
Pre-Compounded Materials and
Extracted Flame Retardant
Flame Retardant
PET (Polyester)
Pre-Compounded
Materials
Hair Fiber Processing
Finished
Fibers
2
Claim 1 of the ’429 Patent
’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
3
Claim 1 of the ’430 Patent
’430 Patent
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.
DTX1002, ’430 Patent, Claim 1
4
Artificial Hair Fibers Are Comprised
of Polymeric Materials
Fiber
Wig
Polyester Polymers
Flame Retardant Polymers
5
Brominated Epoxy Flame Retardants
Are Polymeric Materials
Fiber
degree of polymerization = number of beads in one molecule
molecular weight = weight of all beads in one molecule
6
Monomers React to Form Polymer Molecules
c
polymer
monomers
molecule
7
Claim 1 of the ’429 Patent
’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.
Fiber Processing
Pre-Compounded
Flame Retardant
Extracted Flame
Retardant
PTX 0001, ’429 Patent, Claim 1
8
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]:
(including PET and PBT)
wherein m represents 30 to 150, and having a monofilament
size of 30 to 80 dtex.
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]:
5 to 30 parts by weight of (B) a linear tetrabrominated
epoxy flame retardant
wherein m represents 30 to 150, and having a monofilament
size of 30 to 80 dtex.
PTX 0001, ’429 Patent, Claim 1
10
Kaneka’s Patents Claim a Linear Flame Retardant
’429 Patent
[5 to 30 parts by weight of (B) a linear tetrabrominated
epoxy flame retardant…]
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
CLAIMED
Branched, NOT counted
towards 5 to 30
parts by weight
NOT CLAIMED
PTX 0001, ’429 Patent, Claim 1
11
The Flame Retardant in Fireblock
Is More Branched After Processing
0.5
0.5
viscosity
00
Pre-Compounded
Blend
-0.5
-0.5
Increased
Branching:
Extracted Fireblock
Flame Retardant
-1
-1
-1.5
-1.5
-2
-2
44
4.2
4.2
4.4
4.4
4.6
4.6
4.8
4.8
55
5.2
5.2
5.4
5.4
5.6
5.6
5.8
6
molecular weight
12
The Flame Retardant in Fireblock
Is Extensively Branched
1
viscosity
0.5
0
Linear
-0.5
Branched:
Extracted Fireblock
Flame Retardant
-1
-1.5
-2
4
4.2
4.4
4.6
4.8
5
5.2
5.4
5.6
5.8
6
molecular weight
13
Branching Index Shows Extent of
Branching in Fireblock
1.4
1.3
1.2
1.1
Linear
1
0.9
branched
more branched
0.8
g’
0.7
0.6
0.5
0.4
Branched:
Extracted Fireblock
Flame Retardant
0.3
0.2
0.1
0
4.5
5.0
5.5
6.0
molecular weight
14