Patent classifications
C08G18/2081
AMINE COMPOSITION USEFUL FOR MAKING STABLE POLYURETHANE FOAM SYSTEMS
A catalyst composition comprising at least one compound with a general formula I:
##STR00001##
wherein A is N—R.sup.3, R.sup.3 is C.sub.1-C.sub.8 linear or branched, x=0-6, n and m are each independently 1 to 6, R.sup.1 and R.sup.2 are each independently C.sub.2-C.sub.8 alkyl, and R.sup.4 and R.sup.5 are —CH.sub.3 groups; or A=O, x=0-6. n and m are each independently 1 to 6. R.sup.1 and R.sup.2 are each independently C.sub.2-C.sub.8 alkyl, and R.sup.4 and R.sup.5 are —CH.sub.3 groups; or A=O or N—R.sup.3, R.sup.3 is C.sub.1-C.sub.8 linear or branched, and N(R.sup.1-R.sup.4) and N(R.sup.2-R.sup.5) each independently represent a C.sub.3-C.sub.7 ring amine moiety of the type:
##STR00002##
MOISTURE CURABLE ADHESIVE COMPOSITIONS
An adhesive composition for use in flooring applications that includes a moisture curable polymer system; a calcium carbonate filler system having a first spheroidal particle of calcium carbonate having an equivalent spherical mean diameter of 70 nanometer (nm) to 15 micrometer (μm) and a second spheroidal particle of calcium carbonate having an equivalent spherical mean diameter of greater than 15 μm to 200 μm; a seed oil based fatty acid ester; and a silane based adhesion promoter. The adhesive composition provides low viscosity along with high shear resistance, which helps to retain the troweled ridges to enable maximum coverage.
HCFO-containing isocyanate-reactive compositions, related foam-forming compositions and flame retardant PUR-PIR foams
HCFO-containing isocyanate-reactive compositions, foam-forming compositions containing such isocyanate-reactive compositions, rigid PUR-PIR foams made using such foam-forming compositions, and methods for producing such foams, including use of such foams as insulation in discontinuous foam panel applications. The isocyanate-reactive composition includes a polyol blend, a blowing agent composition, and a tertiary amine catalyst. The polyol blend includes: (1) an aromatic polyester polyol having a functionality of 1.5 to less than 2.5 and an OH number of 150 to 360 mg KOH/g; (2) an aromatic polyester polyol having a functionality of at least 2.5 and an OH number greater than 360 mg KOH/g, which is present in an amount of at least 10% by weight, based on the total weight of the aromatic polyester polyol in the polyol blend; and (3) an amine-initiated polyether polyol having an OH number of at least 500 mg KOH/g and a functionality of 2.5 to 4. The blowing agent composition includes a hydrochlorofluoroolefin and a carbon dioxide generating chemical blowing agent.
Porous polyurethane polishing pad and preparation method thereof
Embodiments relate to a porous polyurethane polishing pad for use in a chemical mechanical planarization (CMP) process of semiconductors and a process for producing the same. In the porous polyurethane polishing pad, it is possible to control the size and distribution of pores, whereby the polishing performance (i.e., polishing rate) of the polishing pad can be adjusted, by way of employing thermally expanded microcapsules as a solid phase foaming agent and an inert gas as a gas phase foaming agent.
Urethane Adhesive Composition
A two-part urethane adhesive composition includes a main agent containing a filler and a urethane prepolymer having an isocyanate group and formed from a polyisocyanate A and a polyol 1 with two to three hydroxy groups per molecule and a number-average molecular weight of ≥1800. Isocyanate group content in the main agent is ≥5 mass % of a main agent total content. The composition includes a curing agent containing a polyoxyalkylene polyol, a polyol 2, a urethanization reaction catalyst, a filler, and zeolite, the polyoxyalkylene polyol having two to three hydroxy groups per molecule and having a number-average molecular weight of ≥1800, the polyol 2 having two or more hydroxy groups per molecule and having a number-average molecular weight of ≤200. The urethanization reaction catalyst contains an organic tin catalyst, and an amine catalyst represented by Formula (1) or an amine catalyst blocked with an acid.
Adhesive useful for installing vehicle windows
Disclosed are compositions comprising: a) one or more isocyanate functional components; b) one or more alkoxyalkyl benzoates; and c) one or more catalysts for the reaction of isocyanate moieties with hydroxyl groups. Disclosed is a method of bonding two or more substrates together comprising contacting two or more substrates together with a composition disclosed herein disposed along at least a portion of the area wherein the substrates are in contact. At least one of the substrates may be window glass. One of the other substrates may be a building or a vehicle.
Catalyst for dissociation of blocking agent for blocked isocyanates, and thermosetting composition containing said catalyst for dissociation of blocking agent
A blocking agent dissociation catalyst for blocked isocyanates comprising a nitrogen-containing compound represented by Formula (1a): ##STR00001##
wherein D is represented by Formula (2): ##STR00002##
wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and a are as described in the specification.
TWO-COMPONENT POLYURETHANE OR POLYISOCYANURATE LOW PRESSURE SPRAY FOAM COMPOSITION CONTAINING A GASEOUS BLOWING AGENT COMPRISING PRESSURIZED CARBON DIOXIDE
Storage-stable two-component polyurethane or polyisocyanurate spray foam compositions are disclosed, said compositions comprising: (a) an A-side component comprising one or more polyisocyanate and one or more blowing agent; and (b) a B-side component comprising one or more polyol and one or more blowing agent comprising pressurized gaseous carbon dioxide and one or more liquid blowing agent; wherein both the A-side component and the B-side component, separately, generate less than 300 ppm of fluoride ion after one week of aging at 50° C.
Polyurethane foam
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.
URETHANE-BASED ADHESIVE FOR AUTOMOBILE
The present invention provides an adhesive composition which is a primerless urethane-based adhesive and has high adhesive force with respect to a polyolefin-based resin. An adhesive composition according to the present invention is a two-liquid type urethane-based adhesive composition comprising: a main agent which comprises (A) a urethane prepolymer having an isocyanate group at the end thereof, (B) a polyfunctional isocyanate compound having an alkoxysilyl group which can be obtained through a reaction of a silane compound having at least two alkoxysilyl groups in one molecule and a polyisocyanate having an isocyanate group at the end thereof and (C1) a first curing catalyst; and a curing agent which comprises (D) a hydrophobic polyol and (C2) a second curing catalyst.