USE OF DI(ISONONYL)CYCLOHEXANOATE (DINCH) IN EXPANDABLE PVC FORMULATIONS
The invention relates to a foamable composition containing at least one polymer selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyvinyl butyrate, polyalkyl (meth)acrylate and copolymers thereof, a foam former and/or foam stabilizer and diisononyl 1,2-cyclohexanedicarboxylate as plasticizer. The invention further relates to foamed mouldings and to use of the foamable composition for floor coverings, wall coverings or artificial leather.
1 . A foamable composition comprising:
at least one polymer selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, polyvinyl butyrate, polyalkyl (meth)acrylate and a copolymer thereof,
a foam former, a foam stabilizer, or both,
and diisononyl 1,2-cyclohexanedicarboxylate, as plasticizer.
2 . The foamable composition according to claim 1 , wherein the polymer is polyvinyl chloride.
3 . The foamable composition according to claim 1 , wherein the polymer is a copolymer of vinyl chloride with at least one monomer selected from the group consisting of vinylidene chloride, vinyl butyrate, methyl acrylate, ethyl acrylate and butyl acrylate.
4 . The foamable composition according to claim 1 , wherein an amount of diisononyl 1,2-cyclohexanedicarboxylate is from 5 to 150 parts by mass per 100 parts by mass of the polymer.
5 . The foamable composition according to claim 1 , further comprising a plasticizer other than diisononyl 1,2-cyclohexanedicarboxylate.
6 . The foamable composition according to claim 1 , comprising a gas bubble evolver component as the foam former and optionally a kicker.
7 . The foamable composition according to claim 1 , comprising emulsion PVC.
8 . The foamable composition according to claim 1 , further comprising at least one additive selected from the group consisting of a filler, a pigment, a thermal stabilizer, an antioxidant, a viscosity regulator, a foam stabilizer and a lubricant.
9 . The foamable composition according to claim 1 , wherein the composition is suitable for floor coverings, wall coverings or artificial leather.
10 . A foamed moulding comprising the foamable composition according to claim 1 .
11 . A floor covering comprising the foamable composition in a foamed state according to claim 1 .
12 . A wall covering comprising the foamable composition in a foamed state according to claim 1 .
13 . An artificial leather comprising the foamable composition in a foamed state according to claim 1 .
14 . The foamable composition according claim 1 , wherein an amount of diisononyl 1,2-cyclohexanedicarboxylate is from 10 to 100 parts by mass per 100 parts by mass of the polymer.
15 . The foamable composition according claim 1 , wherein an amount of diisononyl 1,2-cyclohexanedicarboxylate is from 10 to 80 parts by mass per 100 parts by mass of the polymer.
16 . The foamable composition according claim 1 , wherein an amount of diisononyl 1,2-cyclohexanedicarboxylate is from 15 to 90 parts by mass per 100 parts by mass of the polymer.
17 . The foamable composition according to claim 5 , wherein a mass ratio of the further plasticizer to the diisononyl 1,2-cyclohexanedicarboxylate is between 1:10 and 10:1.
18 . The foamable composition according to claim 5 , wherein a mass ratio of the further plasticizer to the diisononyl 1,2-cyclohexanedicarboxylate is between 1:10 and 8:1.
19 . The foamable composition according to claim 5 , wherein a mass ratio of the further plasticizer to the diisononyl 1,2-cyclohexanedicarboxylate is between 1:10 and 5:1.
20 . The foamable composition according to claim 5 , wherein a mass ratio of the further plasticizer to the diisononyl 1,2-cyclohexanedicarboxylate is between 1:10 and 1:1.