C08G18/485

Isocyanate-reactive compositions, polyurethane foams formed therefrom, multi-layer composite articles that include such foams, and methods for their preparation
11613604 · 2023-03-28 · ·

Isocyanate-reactive composition that include a polyol blend, a blowing agent composition, and a catalyst. The polyol blend includes a polyether polyol having a functionality of 2 to 6 and an OH number of 20 to 50 mg KOH/g, which is present in an amount of at least 30% by weight, based on total weight of the isocyanate-reactive composition, and an aromatic polyester polyol having a functionality of 1.5 to 3 and an OH number of 150 to 450 mg KOH/g, which is present in an amount of at least 40% by weight, based on total weight of the isocyanate-reactive composition. The blowing agent composition includes water, the water being present in an amount of 1 to 20% by weight, based on total weight of the isocyanate-reactive composition and in an amount of at least 90% by weight, based on total weight of the blowing agent composition. The isocyanate-reaction composition has a green content of at least 30% by weight, based on total weight of the isocyanate-reactive composition. Polyurethane foam-forming reaction mixtures, polyurethane foams, multi-layer composite articles and methods for their production are also described.

COMPOUND AND POLYMER COMPOUND CONTAINING THE COMPOUND

Provided is a compound having higher fluorescence quantum yield and higher optical stability than a conventional FLAP and a polymer compound containing the compound.

##STR00001## A: seven or eight-membered ring structure, Y.sup.1, Y.sup.2, Y.sup.3: halogen atom or the like, al: number of Y.sup.1, a2: number of Y.sup.2, B: number of Y.sup.3, 0≤m and n≤3: when 1≤m≤3, Y.sup.1 may be substituted with a structure portion defined by m, when 1≤n≤3, Y.sup.2 may be substituted with a structure portion defined by n, and B.sup.1, B.sup.2: Formulas (2-1) to (2-3):

##STR00002## C.sup.1, C.sup.2, C.sup.3: structure containing a cyclic hydrocarbon compound, D.sup.1, D.sup.2, D.sup.3: substructure that inhibits aggregation, E.sup.1, E.sup.2, E.sup.3: polymerizable substructure, Z.sup.1: hydrogen atom or the like, c: number of substituent groups Z.sup.1, Z.sup.2, Z.sup.3: hydrogen atom or the like, and may form a ring with C.sup.2.

PROCESSES AND PRODUCTION PLANTS FOR PRODUCING POLYMER POLYOLS
20230122773 · 2023-04-20 ·

Processes for preparing a polymer polyol (PMPO) in which a base polyol is continuously produced in a continuous base polyol reactor, the base polyol is continuously discharged from the continuous base polyol reactor; the base polyol is continuously introduced to a continuous PMPO reactor, which is different from the continuous base polyol reactor, and PMPO is continuously removed from the PMPO reactor. Production plant configured to carry out such processes are also described.

ELECTRICALLY DISSIPATIVE POLYURETHANE FOAMS AND USE THEREOF IN TRENCH BREAKERS OR PIPELINE PILLOWS
20230104226 · 2023-04-06 ·

Described herein is an electrically dissipative polyurethane foam and a method of using the electrically dissipative polyurethane foam in trench breakers or pipeline pillows.

COMPOSITE ELEMENTS MADE FROM THERMOPLASTIC MATERIALS AND POLYURETHANES, METHOD FOR PRODUCING SAME, AND USE THEREOF
20230140887 · 2023-05-11 ·

The invention relates to: composite elements comprising a thermoplastic material and a polyurethane adhering to said thermoplastic material; a method for producing same; and the use thereof.

CATALYSTS FOR THE FORMATION OF POLYURETHANES

The invention relates to novel urethane or carbamate compounds which can act as a catalyst for the reaction of at least one isocyanate compound with at least one isocyanate-reactive compound, in particular for the manufacture of polyisocyanate polyaddition products, such as polyurethanes, in particular, for the manufacture of polyurethane (PU) foams, where they exhibit superior blowing performance.

Viscoelastic Polyurethane Foam with Aqueous Polymer Dispersion

A reaction system for forming a viscoelastic polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C.sub.2 to C.sub.20 alpha-olefin.

Composition

An isocyanate reactive composition including at least one component selected from the group consisting of a polyether polyol, a polyester polyol, a polyether polyamide and a polyester polyamide; one or more amine components, each of said amine components having a given structure. In some embodiments, the average number of nitrogen atoms of said amine components is in the range of 5 to 10.

SELF-REPAIRING POLYURETHANE RESIN MATERIAL, SELF-REPAIRING POLYURETHANE RESIN, SELF-REPAIRING COATING MATERIAL, SELF-REPAIRING ELASTOMER MATERIAL, METHOD FOR PRODUCING SELF-REPAIRING POLYURETHANE RESIN MATERIAL, AND METHOD FOR PRODUCING SELF-REPAIRING POLYURETHANE RESIN

In a self-repairing polyurethane resin material produced by reaction of pentamethylenediisocyanate with an active hydrogen group-containing compound, the active hydrogen group-containing compound contains a polyol compound having a number average molecular weight of 100 to 2000 and an average functionality of 2 to 3.

Flame-retardant polyurethane foam

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.