Polyurethanes coupling agents

U.S. Pat. No. 5,480,602 [85] discloses a composite comprising polypropylene, polyethylene, or their combination along with lignocellulosic particles (50-70% by weight) and a polyurethane coupling agent (15-3% by weight of the mixture). 

Plasticizer for vinyl resins and solvent carriers or coupling agents for polyurethane and photographic films. Typically used in combination with phthalates. 

Chem. Descrip. N-(2-Aminoethyl-3-aminopropyl trimethoxy silane CAS 1760-24-3 EINECS/ELINCS 212-164-2 Uses Adhesion promoter and pigment treatment for coatings, adhesives coupling agent used for epoxies, phenolics, melamines, nylons, PVC, acrylics, polyolefins, polyurethanes, nitrile rubbers food pkg. adhesives Regulatory FDA 21CFR 175.105,175.300 Use Level 0.05-16%... 

Chem. Descrip. y-Glycidoxypropyltrimethoxysilane CAS 2530-83-8 EINECS/ELINCS 219-784-2 Uses Adhesion promoter in water-borne acrylic sealants, urethane and epoxy coatings coupling agent in polysulfide and polyurethane caulks and sealants, min.-filled or glass-reinforced thermosets and thermoplastics, and in glass roving size-binders Properties Colorless transparent liq. m.w. 236.4 dens. 1.065-1.075 vise. 

Chem. Descrip. y-Methacryloxypropyltrimethoxysilane CAS 2530-85-0 EINECS/ELINCS 219-785-8 Uses Adhesion promoter for adhesives and coatings coupling agent for glass-reinforced and min.-filled thermosetting resins blend additive in resin systems (polyester, acrylic), and filled or reinforced thermoplastic polymers (polyolefins, polyurethanes)... 

Uses Intermediate in the prod, of nylon mfg. of hexamethylenediamine, polyesters, polyurethanes, paints polyurethane chain extender in gasoline refining as plasticizer solvent coupling agent coil coating Manuf./Distrib. Aldrich Allchem Ind. BASF Eastern Chem. Fallek Fluka Penta Mfg. 

Toxicology LD50 (oral, rat) 3.73 g/kg mod. toxic by ing. skin and eye irritant TSCA listed Precaution Combustible when exposed to heat or flame can react with oxidizers Hazardous Decomp. Prods. Heated to decomp., emits acrid smoke and fumes NFPA Health 1, Flammability 0, Reactivity 0 Uses Intermediate in the prod, of nylon, hexamethylenediamine, polyesters, polyurethanes, paints, pharmaceuticals polyurethane chain extender in gasoline refining as plasticizer solvent coupling agent coil coating... 

Hydroxymethylated resorcinol, coupling agents, polyurethanes, adhesives, adhesion, resins... 

This paper aims at explaining the reaction between the HMR coupling agent and one-component polyurethane adhesives used for wood lamination. 

Used as low-temperature-resistant and low-viscosity plasticizer for PVC and its copolymers and cellulose esters (e.g., cellulose acetate butyrates and cellulose propionates). They are also used as solvent carriers or coupling agents for polyurethane. 

Polymers that set by chemical reaction may react not only within the components of pre-polymer mixtures, but also with the substrate. This occurs principally with pre-polymers that are sensitive to water, such as isocyanates in polyurethanes and silanes. The chemical links can be deliberately created by using a reactive primer, e.g. a silane coupling agent. Many water-soluble polymers, e.g. poly(vinyl alcohol) and cellulose derivatives, may be expected to adhere more strongly and irreversibly because of the presence of reactive groups on degraded objects. 

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