C08J9/0038

Polyurethane foams based on polyethercarbonate polyols

The present invention relates to a method for producing polyurethane foams by reacting an isocyanate component with an isocyanate-reactive component comprising at least one polyethercarbonate polyol, the reaction taking place in the presence of a component K selected from one or more compounds from the group consisting of K1 esters of mono- or polybasic carboxylic acids whose (first) dissociation has a pKa of 0.5 to 4.0, K2 mono-, di- and polysulfonates of mono- and polyfunctional alcohols, and K3 one or more compounds from the group consisting of K 3.1 esters of phosphoric acid, phosphonic acid, phosphorous acid, phosphinic acid, phosphonous acid and phosphinous acid, these esters each containing no P—OH group, K3.2 oligomeric alkyl phosphates of the general formula (II), where a is an integer from 1 to 10, b is an integer from 1 to 10, R1, R2, R3 and R4 are alkyl groups having at least one carbon, and R1, R2, R3 and R4 are alike or, independently of one another, different, and R5 is a linear alkylene group having at least two carbons or is a branched alkylene group having at least three carbons, and K3.3 comprises oligomeric alkyl phosphates of the general formula (III), where a is an integer from 1 to 10, b is an integer from 1 to 10, R1, R4 and R5 are linear alkylene groups having at least two carbons or are branched alkylene groups having at least three carbons, and R1, R4 and R5 are alike or, independently of one another, different, and R2 and R3 are alkyl groups having at least one carbon, and R2 and R3 are alike or, independently of one another, different. The invention also relates to polyurethane foams produced by the method of the invention and to the use thereof.

FLAME-RETARDANT POLYURETHANE FOAM
20220145032 · 2022-05-12 ·

A thermoset foam comprises from 0.2 to 4.0 wt. % of at least one aliphatic brominated polyether polyol, from 2.0 to 7.0 wt. % of at least one aromatic brominated polyester polyol, and from 2.0 to 7.5 wt. % of at least one flame retardant comprising organo-phosphate, organo-phosphonate, or organo-phosphite, wherein the ratio of the amount of aliphatic bromine expressed as a percentage of total bromine to the amount of aromatic bromine expressed as a percentage of total bromine is from 10:90 to 50:50.

Flame-retardant phenolic resin foam

A phenolic resin foam has a density of 30 kg/m.sup.3 to 80 kg/m.sup.3, a closed cell ratio of 85% or more, and reaches a total amount of heat release of 8 MJ/m.sup.2 in a time of 20 minutes or more in a heat release test performed using a cone calorimeter.

FOAMABLE POLYOLEFIN COMPOSITION PROVIDING INCREASED FLEXIBILITY

The invention relates to a foamable polymer composition comprising a polyolefin polymer which polyolefin polymer does not bear silane moieties and comprises 20 to 99.99 wt. % linear low density polyethylene, and a blowing agent in an amount of 0.01 to 3 wt. % based on the total foamable polymer composition, wherein the blowing agent consists of citric acid and/or derivatives of citric acid or mixtures thereof. Further the invention relates to a foamable polymer composition comprising a polyolefin polymer, and a blowing agent in an amount of 0.01 to 3 wt. % based on the total foamable polymer composition, wherein the blowing agent consists of expandable polymeric microspheres, and the composition does not comprise fluororesin. Further the invention relates to a foamed polymer composition obtained by foaming this foamable polymer composition. Further the invention relates to the use of the foamable composition or the foamed polymer composition for a layer of a cable and a cable comprising at least one layer which comprises the

Foamable, insulating-layer-forming multi-component composition having improved storage stability and use of the same

A foamable, insulating-layer-forming multi-component composition contains alkoxysilane-functional polymer, insulating-layer-forming fire-protection additive, blowing-agent mixture, cross-linking agent, and a flame-protection agent that is miscible in water or another compound that is miscible in water. The individual ingredients of the blowing-agent mixture are separated from one another to ensure inhibition of reaction prior to use of the composition, and the cross-linking agent is separated from the alkoxysilane-functional polymer to ensure inhibition of reaction prior to use of the composition. The foamable, insulating-layer-forming multi-component composition can be used as a foam-in-place foam or for production of molded blocks.

REACTIVE FLAME RETARDANTS FOR FLEXIBLE POLYURETHANE FOAMS
20230242727 · 2023-08-03 ·

The present invention provides reactive multi-functional dialkyl phosphinate compound(s), serving as highly efficient reactive flame retardants in flexible polyurethane foams. The invention further provides fire-retarded polyurethane compositions comprising said multi-functional dialkyl phosphinate compound and applications containing the same.

Polyurethane foam
11713382 · 2023-08-01 · ·

A polyurethane foam is disclosed having unique load bearing characteristics rendering it suitable for a variety of applications. The foam exhibits high surface-softness and smoothness properties, making it well-suited for use in articles such as pillows and mattress toppers. However, upon continued application of pressure, the resilience of the foam increases sharply, translating into a remarkable support characteristics that make the foam suitable for use in the seat portions of chairs and sofas, as well as in the base portion of mattresses. The foams therefore address the limitations of conventional, high-resilience and visco-elastic polyurethane foams. A process of making the foam and its use in various articles is also disclosed.

Two-Part Phosphate Ester Elastomeric Epoxy Composition and Method of Use Thereof
20220025172 · 2022-01-27 ·

The present teachings provide for a two-part system and a method of using the two-part system, the two-part system comprising: a first component including one or more epoxy resins; a second component including one or more phosphate esters; and wherein, upon mixing the first component and second component a cured elastomeric composition is formed in a temperature of about 0° C. to about 50° C.

RIGID POLYISOCYANURATE AND POLYURETHANE FOAMS AND METHODS FOR PREPARING THE SAME

A composition for preparing polyisocyanurate and polyurethane foams is provided, comprising A) a first isocyanate-reactive component comprising a bisphenol, B) a second isocyanate-reactive component different from the first isocyanate-reactive component, and C) a polyisocyanate component. A method for preparing the polyisocyanurate and polyurethane foams, and foams prepared thereby are also provided.

POLYURETHANE COMPOSITION RAW MATERIAL LIQUID AGENT, POLYURETHANE COMPOSITION, AND MIXING SYSTEM

A polyurethane composition raw material liquid agent comprises a polyol or an isocyanate, and a filler. The polyurethane composition raw material liquid agent has a viscosity at 25° C. and a rotation speed of 60 rpm of 950 mPa.Math.s or less, and is filled in at least one cartridge-like container of a caulking gun that includes two cartridge-like containers and is capable of mixing two components.