A polymer composition is disclosed which composition includes at least a first polymer and a second polymer. The first polymer is made up of at least 10 mole percent repeat units of (3-hydroxypropionate). The second polymer is made up of a poly(hydroxyalkanoate) which does not include repeat units of (3-hydroxypropionate). A method for making the first polymer is also disclosed.

Compounded copolyamide powders, processes for preparation of compounded copolyamide powders, articles made therefrom and uses.

An adhesive composition that is excellent in both adhesiveness and a holding force while having high flame retardancy. The adhesive composition contains an acrylic resin (A) containing a (meth)acrylic acid monomer (a1) unit and a hydroxyl group-containing monomer (a2) unit, an epoxy crosslinking agent (b1), an isocyanate crosslinking agent (b2), and a flame retardant (C).

A composite material having at least two layers of reinforcing fibers impregnated with a curable resin; an interlaminar region formed between adjacent layers of reinforcing fibers; and a combination of polymeric toughening particles and fire-retardant particles in the interlaminar region.

The present invention relates to a thermoplastic molding composition comprising a thermoplastic polyester, a metal salt of formula (I), a halogen-containing flame retardant, and an anti-dripping agent; a method of producing fibers, foils and moldings comprising the use of the thermoplastic molding composition; and a fiber, foil or molding obtained from the thermoplastic molding composition.

##STR00001##

The present invention relates to a thermoplastic molding composition comprising a thermoplastic polyester, a metal salt of formula (I), a halogen-containing flame retardant, and an anti-dripping agent; a method of producing fibers, foils and moldings comprising the use of the thermoplastic molding composition; and a fiber, foil or molding obtained from the thermoplastic molding composition.

##STR00001##

Modified lignin products, processes for making them, and their use to produce rigid polyurethane or polyisocyanurate foams are disclosed. The processes comprise heating a lignin source with a nitrogen source and a starved concentration of a C.sub.1-C.sub.5 aldehyde to give a reaction mixture comprising a Mannich condensation product, neutralizing the reaction mixture, and isolating the modified lignin product. The process is performed at a mass ratio of lignin source to nitrogen source within the range of 1:1 to 1:5 and at a molar ratio of nitrogen source to C.sub.1-C.sub.5 aldehyde within the range of 3.5:1 to 1:1. Polyol blends and performance additives that contain the modified lignin products are described. Rigid foams that process well and incorporate up to 60 wt.%, based on the amount of polyol component, of the modified lignin contribute to excellent flame retardancy and low-temperature R-value performance.

The invention provides a flame retardant-stabilizer combination for thermoplastic polymers, comprising as component A 20% to 99.7% by weight of phosphinic salt of the formula (I), (I), in which R.sub.1 and R.sub.2 are each ethyl, M is Al and m is 3; as component B 0.2% to 16% by weight of aluminium salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid; as component C 0.1% to 80% by weight of a salt of phosphorous acid having the general formula (II) [HP(═O)O.sub.2].sup.2−M.sup.m+(II) in which M is Zn and m is 2; as component D 0% to 80% by weight of a salt of phosphorous acid having the general formula (III) [HP(═O)O.sub.2].sup.2−.sub.3 M.sup.m+.sub.2 (III) in which M is Al and m is 3; as component E 0% to 30% by weight of a nitrogen-containing synergist and/or of a phosphorus-containing and/or nitrogen-containing flame retardant; as component F 0% to 10% by weight of an inorganic synergist selected from zinc borate, zinc stannate, boehmite and/or hydrotalcite; as component G 0% to 3% by weight of an organic phosphonite and/or a mixture of an organic phosphonite and an organic phosphite and as component H 0% to 3% by weight of an ester and/or salt of long-chain aliphatic carboxylic acids (fatty acids) typically having chain lengths of C.sub.14 to C.sub.40, where the sum total of the components is always 100% by weight.

##STR00001##

The invention provides a flame retardant-stabilizer combination for thermoplastic polymers, comprising as component A 20% to 99.7% by weight of phosphinic salt of the formula (I), (I), in which R.sub.1 and R.sub.2 are each ethyl, M is Al and m is 3; as component B 0.2% to 16% by weight of aluminium salts of ethylbutylphosphinic acid, of dibutylphosphinic acid, of ethylhexylphosphinic acid, of butylhexylphosphinic acid and/or of dihexylphosphinic acid; as component C 0.1% to 80% by weight of a salt of phosphorous acid having the general formula (II) [HP(═O)O.sub.2].sup.2−M.sup.m+(II) in which M is Zn and m is 2; as component D 0% to 80% by weight of a salt of phosphorous acid having the general formula (III) [HP(═O)O.sub.2].sup.2−.sub.3 M.sup.m+.sub.2 (III) in which M is Al and m is 3; as component E 0% to 30% by weight of a nitrogen-containing synergist and/or of a phosphorus-containing and/or nitrogen-containing flame retardant; as component F 0% to 10% by weight of an inorganic synergist selected from zinc borate, zinc stannate, boehmite and/or hydrotalcite; as component G 0% to 3% by weight of an organic phosphonite and/or a mixture of an organic phosphonite and an organic phosphite and as component H 0% to 3% by weight of an ester and/or salt of long-chain aliphatic carboxylic acids (fatty acids) typically having chain lengths of C.sub.14 to C.sub.40, where the sum total of the components is always 100% by weight.

##STR00001##

The present disclosure relates to a novel flame retardant and stabilizer additive composition for thermoplastic polymers, the additive composition including at least one phosphorus-containing flame retardant and at least one carbodiimide, as described herein. The presently disclosed additive compositions are useful over a wide range of thermoplastic applications, particularly in thermoplastic polymers that are processed and/or used at high temperatures.