US2010048778A1PendingUtilityA1
Plasticiser Compositions
Est. expiryJan 18, 2025(expired)· nominal 20-yr term from priority
C08K 2201/014C08K 5/101C08L 27/06Y10T428/31504
59
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Claims
Abstract
C 9 to C 11 alkyl benzoates are used as plasticisers for polyvinyl chloride in particular in combination with plasticisers such as di-2-ethyl hexyl phthalate, diisononyl phthalate, di-2-propyl heptyl phthalate, diisodecyl phthalate or di-2-ethyl hexyl terephthalate. The use of the C 9 to C 11 alkyl benzoates provides low viscosity low volatility plasticisers, which are fast fusing with lower hot bench gelation temperature and which can be used to reduce the staining problems associated with use of di-2-ethyl hexyl phthalate and diisononyl phthalate. The low viscosity of the C 9 to C 11 alkyl benzoates allows the formulation of solvent free flexible PVC formulations meeting stringent VOC limitations.
Claims
exact text as granted — not AI-modified1 . A plasticised polyvinyl chloride composition that does not elute in the FLEC region as defined in the European Env: 13149-3 standard comprising polyvinyl chloride and from 20 parts to 200 parts by weight of plasticiser per hundred parts by weight of polyvinyl chloride said plasticiser comprising a C 9 to C 11 alkyl benzoate.
2 . The composition according to claim 1 which is free of a solvent or viscosity depressant.
3 . The composition according to claim 1 comprising a plasticiser other than a C 9 to C 11 alkyl benzoate, and a C 9 to C 11 alkyl benzoate.
4 . The composition according to claim 1 having a hot bench gelation temperature below 66° C. and a Brookfield viscosity at 20° C. below 2500 mPa·s free of viscosity depressants.
5 . The composition according to claim 1 containing at least 40 parts by weight of C 9 to C 11 alkyl benzoate per 100 parts by weight of polyvinyl chloride and having a Clash & Berg temperature of −25° C. or lower.
6 . The composition according to claim 1 containing at least 20 parts by weight of C 9 to C 11 alkyl benzoate and a total plasticiser content of at least 40 parts by weight per 100 parts by weight of polyvinyl chloride.
7 . The composition according to claim 1 in which the polyvinyl chloride is an emulsion polyvinyl chloride or a micro suspension polyvinyl chloride or a blending resin.
8 . The composition according to claim 7 in which the polyvinyl chloride has a K value greater than 60.
9 . The composition according to claim 1 in which the alkyl benzoate comprises from 15 to 90% by weight of the plasticiser component of the composition.
10 . The composition according to claim 9 wherein the plasticiser comprises from 40% to 60% alkyl benzoate.
11 . A plastisol according to claim 1 comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
5-25
Plasticiser other than a C 9 to C 11 alkyl benzoate
20-50
12 . The plastisol according to claim 11 which additionally comprises in parts by weight per hundred parts by weight PVC (phr)
Filler
0-80
Stabiliser
1-4
Other
0-20
13 . A formulation according to claim 1 for use in the production of automotive underbody sealants comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
20-35
Plasticiser other than a C 9 to C 11 alkyl benzoate
60-90
14 . The formulation according to claim 13 which additionally comprises in parts by weight phr
Filler
80-150
Stabiliser and other additives
0-10
15 . A formulation according to claim 1 for use in the production of calendered floor tiles comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
10-30
Plasticiser other than a C 9 to C 11 alkyl benzoate
20-30
16 . The formulation according to claim 15 which additionally comprises in parts by weight phr
Epoxidized soybean oil
0-6
Filler
500-800
17 . A formulation according to claim 1 for use in the production of stain resistant flooring top layers comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
10-20
Plasticiser other than a C 9 to C 11 alkyl benzoate
20-30
18 . The formulation according to claim 17 which additionally comprises in parts by weight phr
Stabiliser
>0-3
19 . A formulation according to claim 1 for use in the production of glass fleece impregnation layers comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
10-40
Plasticiser other than a C 9 to C 11 alkyl benzoate
20-60
20 . The formulation according to claim 19 which additionally comprises in parts by weight phr
Stabiliser
0-3
Filler
80-140
21 . A formulation according to claim 1 for use in the production of flooring decorative foam layers comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
10-20
Plasticiser other than a C 9 to C 11 alkyl benzoate
20-30
22 . The formulation according to claim 21 which additionally comprises in parts by weight phr
Blowing agent
1-4
Stabiliser
0-3
TiO2
0-2
23 . A formulation according to claim 1 for use in the production of flooring back foam layers comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
10-30
Plasticiser other than a C 9 to C 11 alkyl benzoate
20-30
24 . The formulation according to claim 23 which additionally comprises in parts by weight phr
Blowing agent
0.2-4
Stabiliser
0-3
TiO2
0-2
25 . A formulation according to claim 1 for extrusion comprising in parts by weight
PVC
100
C 9 to C 11 alkyl benzoate
5-15
Plasticiser other than a C 9 to C 11 alkyl benzoate
10-30Cited by (0)
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