The present invention discloses a rigid polyurethane foam enhancers, methods of using them, as well as products produced by these methods. 该增强剂是促进包含氢卤烃化合物的发泡剂的作用的低分子量醇和/或醚. The enhancer is to promote the blowing agent comprises a hydrogen halide hydrocarbon ...
1、Blowing Agentsv Introductionv Polymer Foamingv Blowing agent Physical blowing agent Chemical blowing agentvSelection criteria for blowing agent Polymeric foam Definition The substance that produces a cellular structure in a polymer mass is defined as a blowing agent. Function The blowing agents play...
Blowing agent(发泡剂)BlowingAgents Outline Introduction PolymerFoamingBlowingagent PhysicalblowingagentChemicalblowingagent Selectioncriteria forblowingagent Introduction •Polymericfoam Introduction •Definition Thesubstancethatproducesacellularstructureinapolymermassisdefinedasablowingagent.Funct...
The present invention relates to blowing agent compositions for polymeric foams that contain carbon dioxide and a hydrofluorocarbon having a boiling point of 14° C. or higher and lower than about 120°
Blowing agent(发泡剂)BlowingAgents Outline Introduction PolymerFoamingBlowingagent PhysicalblowingagentChemicalblowingagent Selectioncriteria forblowingagent Introduction •Polymericfoam Introduction •Definition Thesubstancethatproducesacellularstructureinapolymermassisdefinedasablowingagent.Funct...
摘要: Disclosed are methods of forming an expanded polystyrene foam comprising: (a) providing a foamable resin comprising polystryrene and a blowing agent comprising (i) transHFO-1234ze and (ii) transHCFO-1233zd; and (b) extruding said foamable composition through a dye....
20. The polymeric foam of claim 19, wherein (c) is 1,1,1,3,3-pentafluorobutane. 21. A foamable polymer composition comprising a thermoplastic polymer having dispersed therein a blowing agent composition selected from a group consisting of the blowing agent compositions of claim 1, claim 6,...
Polyurethane PU Foam Manufacturing PUR Microcellular Foaming Raw Materials for Tire Fill $2.50 Min. order: 1000 kilograms Top selling PU Binder Modified MDI Adhesive Light Brown Liquid Adhesive Used In The Production Of Rebounded Foam $3.00 - $4.00 Min. order: 100 kilograms Closed Cell Polyol an...
Polyurethane is a versatile polymer material because the product can be applied in various sectors. Polyurethane is the result of the reaction between the isocyanate and polyol with a number of additives added, one of which is blowing agent. Blowing agent is the key material of foam made from...
The present invention is directed to foams produced from poly(aryl ethers) and mixtures of poly(aryl ethers) with various non-poly(aryl ether) polymers. These foams are produced using aqueous blowing agents comprising water as the only blowing agent, or mixtures of water with another blowing age...