USE OF DI(2-ETHYLHEXYL)TEREPHTHALATE (DEHT) IN FOAMABLE PVC FORMULATIONS
The invention relates to a foamable composition containing a 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 di-2-ethylhexyl terephthalate 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 copolymers thereof,
a foam former, a foam stabilizer, or both, and
di-2-ethylhexyl terephthalate as a plasticizer.
2 : The foamable composition of claim 1 , wherein the polymer is polyvinyl chloride.
3 : The foamable composition of claim 1 , wherein the polymer is a copolymer of vinyl chloride with one or more monomers selected from the group consisting of vinylidene chloride, vinyl butyrate, methyl(meth)acrylate, ethyl(meth)acrylate and butyl(meth)acrylate.
4 : The foamable composition of claim 1 , comprising 5 to 150 parts by mass of di-2-ethylhexyl terephthalate per 100 parts by mass of polymer.
5 : The foamable composition of claim 1 , further comprising an additional plasticizer other than di-2-ethylhexyl terephthalate.
6 : The foamable composition of claim 1 , comprising the foam former, which is a gas bubble evolver component, and optionally further comprising a kicker.
7 : The foamable composition of claim 1 , comprising an emulsion PVC.
8 : The foamable composition of 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 : (canceled)
10 : A foamed moulding comprising the foamable composition of claim 1 .
11 : A floor covering comprising the foamable composition of claim 1 , in a foamed state.
12 : A wall covering comprising the foamable composition of claim 1 , in a foamed state.
13 : An artificial leather comprising the foamable composition of claim 1 , in a foamed state.
14 : The foamable composition of claim 2 , comprising 5 to 150 parts by mass of di-2-ethylhexyl terephthalate per 100 parts by mass of polymer.
15 : The foamable composition of claim 3 , comprising 5 to 150 parts by mass of di-2-ethylhexyl terephthalate per 100 parts by mass of polymer.
16 : The foamable composition of claim 2 , further comprising an additional plasticizer other than di-2-ethylhexyl terephthalate.
17 : The foamable composition of claim 3 , further comprising an additional plasticizer other than di-2-ethylhexyl terephthalate.
18 : The foamable composition of claim 4 , further comprising an additional plasticizer other than di-2-ethylhexyl terephthalate.
19 : The foamable composition of claim 6 , comprising the kicker.
20 : The foamable composition of claim 2 , comprising the foam former, which is a gas bubble evolver component, and optionally further comprising a kicker.
21 : The foamable composition of claim 3 , comprising the foam former, which is a gas bubble evolver component, and optionally further comprising a kicker.