The present invention provides a thermally expandable microcapsule that has excellent heat resistance and compression resistance and that enables the production of a foam molded article that is less likely to undergo deterioration or appearance defects over a long period of time, as well as a foamable masterbatch and a foam molded article each produced using the thermally expandable microcapsule. Provided is a thermally expandable microcapsule including a shell and a volatile expansion agent as a core agent encapsulated by the shell, the shell containing a black material and a polymer compound.

Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF=CHCl, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

The thermoplastic elastomer composition contains a thermoplastic elastomer and a pigment.

The process for forming closed cell expanded low density polyethylene foam includes the steps of: providing a mixture including low density polyethylene pellets and an effective amount of hydrocarbon scavenger additives or degassing agents, such as glycerides; adding a primary blowing agent comprising one of liquid propane, liquid butane, and combinations thereof, to the mixture and gasifying the blowing agent to expand the low density polyethylene; forming the expanded low density polyethylene into sheets, curing the expanded low density polyethylene until 80%, generally at least 99%, of the primary blowing agent is dissipated from cells within the expanded low density polyethylene forming evacuated closed cell low density polyethylene sheets.

Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244 db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243 fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF═CHCl, HFO-1141, HCFO-1242 zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

Disclosed is a blowing agent composition comprising a hydrofluoroolefins (HFO) and a branched hydrocarbon, and a foamable polymer composition comprising the blowing agent composition. Also disclosed is a method of making a polymer foam utilizing a blowing agent composition comprising an HFO and a branched hydrocarbon.

Provided is a phenolic resin foam laminate board in which a flexible surface material is arranged on at least upper and lower surfaces of a phenolic resin foam. The phenolic resin foam contains HCFO-1224yd(Z), has a density of not less than 20 kg/m.sup.3 and not more than 55 kg/m.sup.3, a closed cell ratio of 80% or more, an average cell diameter of not less than 60 μm and not more than 200 μm, a percentage of an area seeping out from the surface material is 30% or less, and content of HCFO-1224yd(Z) per space volume of 22.4×10.sup.−3 m.sup.3 in the phenolic resin foam is not less than 0.06 mol and not more than 0.35 mol.

The present invention is related to a process for the production of a vinyl aromatic (co)polymer comprising the steps of: a) mixing a fraction (A) comprising one or more monomers selected from the group consisting of styrene, alpha-methyl styrene, acrylonitrile, methyl (meth)acrylate, (meth)acrylic acid and butadiene with a fraction (B) comprising post-consumer recycled vinyl aromatic (co)polymer, wherein the weight ratio of fraction (B) to fraction (A) is comprised between 0.01/1 and 1/1, preferably between 0.05/1 and 0.5/1 b) subjecting the resulting mixture to a free-radical polymerization and polymerizing to a monomer conversion up to 90%, to obtain a polymerized mixture comprising vinyl aromatic (co)polymer; c) vacuum devolatizing the polymerized mixture and recovering vinyl aromatic (co)polymer characterized by a weight average molecular weight comprised between 100,000 and 400,000 g/mol;
wherein one or more bromine derivative capture agents are added before, and/or during and/or after at least one of the steps a) to c); and
wherein 100 parts of one or more bromine derivative capture agents comprises at least 50 parts by weight of hydrotalcite of the formula:

[Mg.sub.1-x Al.sub.x(OH).sub.2].sup.x+(CO.sub.3).sub.x/2.mH.sub.2O

wherein: 0<x≤0.5, and m is a positive number.

The present invention is also related to expandable and extruded expanded vinyl aromatic (co)polymer compositions obtained from vinyl aromatic (co)polymers comprising post-consumer and/or post-industrial vinyl aromatic (co)polymer and to a process for the production of said expandable and extruded expanded vinyl aromatic (co)polymer compositions.

Disclosed are a foaming material, a thermal insulation cabinet, and preparation methods therefor. The foaming material comprises 100 parts of a combined polyol, 10-30 parts of a foaming agent composition, and 120-150 parts of an isocyanate. In the present invention, the type of the polyol used in a foaming system is adjusted in order to increase the content of a polyester polyol and reduce the content of a polyether polyol, such that the compressive strength of the foaming material is significantly improved without increasing or changing the injection amount.

A method for synthesising polyurethane foam compositions convenient for use in areas wherein rigidity and lightness are required together in automotive sector and including the steps of: conduct of polyol dosage adjustment, adding inflating reaction catalyser onto polyol of convenient amount and mixing at mechanical mixture, adding glycerine while mixing is continued, adding surfactive while mixing is continued, adding gelling reaction catalyser while mixing is continued, adding cell opening agent while mixing is continued, adding cell opening agent while mixing is continued, adding at least an inflating agent selected from a group consisting of n-pentane, cyclo-pentane, C.sub.3H.sub.8O.sub.2 gas and C.sub.2H.sub.4O.sub.2 gas while mixing is continued, conduct of temperature adjustment of polyol base mixture, conduct of isocyanide dosage adjustment in a separate place, injecting polyol base mixture into reaction container from one side and isocyanides from other side, conduct of temperature control during reaction and opening mold and removing final product.