Filled organic polymeric compositions and a mixture for preparing said compositions

Claim 2

Method of reinforcing a thermoplastic organic polymer comprising blending; (1) said thermoplastic organic polymer; (2) an inorganic filler; and (3) a surfactant comprising: (a) a siloxane containing at least one silicon-bonded alkyl group having at least 12 carbon atoms; or (b) a polyoxyalkylene compound having one or more polyoxyalkylene blocks each bended at one end to a siloxane block, an alkyl group having at least 12 carbon atoms, or an alkenyl group, and bonded at the other end to an alkoxy group, siloxane block or a hydroxy group, to form a substantially homogeneous mixture.

Claim 3

Method as claimed in claim 1 wherein (4) a polymerizable unsaturated silicon compound having one to five silicon atoms interconnected by SiOSi linkages when said compound contains more than one silicon atom per molecule, contains at least one silicon-bonded vinyl-polymerizable unsaturated group, and contains at least one silicon-bonded hydrolyzable group when said compound contains one silicon atom per molecule and wherein any valences of silicon not satisfied by oxygen of the SiOSi linkage, by a silicon-bonded hydrolyzable group or by a silicon-bonded vinyl-polymerizable unsaturated group are satisfied by a monovalent hydrocarbon group free of vinyl-polymerizable unsaturation, is blended with said polymer (1), said filler (2) and said surfactant (3) to form a substantially homogeneous mixture.

Claim 4

Method as claimed in claim 1 or 2 wherein a polymerizable unsaturated organic compound (5) having at least two polymerizable unsaturated groups and optionally a polymerizable unsaturated hydrolyzable silane (4) is blended with said polymer (1), said filler (2), and said surfactant (3) to form a substantially homogeneous mixture.

Claim 5

Method as claimed in claim 3 wherein a polymerizable unsaturated organic compound (5) having at least two polymerizable unsaturated groups is blended with said polymer (1), said filler (2), said surfactant (3) and optionally said silane (4) to form a substantially homogeneous mixture.

Claim 6

Method as claimed in claim 4 wherein said polymer is in particulate solid form or is molten when blended with said filler, sufactant, silane and polymerizable unsaturated organic monomer.

Claim 7

-6. Method as claimed in claims 1 to 5 wherein said thermoplastic (1) is high density polyethylene, or polypropylene.

Claim 8

Method as claimed in claim 6 wherein said surfactant(3) can be represented by the average formula: or or or or or wherein Me is methyl.

Claim 9

Method as claimed in claim 7 wherein said silane is gamma-methacryloxypropyltrimethoxysilane or vinyltriethoxysilane and said organic compound is trimethylolpropane triacrylate.

Claim 10

An integral additive for improving the physical properties of thermoplastic organic polymer filled with inorganic fillers comprising a mixture of (A) a polymerizable unsaturated silicon compound as defined in claim 2 and/or a polymerizable unsaturated organic compound having at least two polymerizable unsaturated groups and (B) a surfactant as defined in claim 1.

Claim 11

. Integral additive as claimed in claim 9 containing 0 to 90 wt. % of a vinyl-polymerizable unsaturated hydrolyzable silane, 0 to 90 wt. % of said polymerizable unsaturated organic compound, and 5 to 95 wt. % of said surfactant as defined in claim 1, the combined amount of said silane and said organic compound being 5 to 95 wt. %, all said wt. %'s being based on the combined weight of said silane, said organic compound and said surfactant.

Claim 12

Integral additive as claimed in claim 17 wherein said silane is gamma-methacryloxypropyltrimethoxysilane, said organic compound is trimethylolpropane triacrylate and said surfactant is a polyoxyethylene-polysiloxane block copolymer represented by the average formula: in which Me is methyl.

Claim 13

Integral additive as claimed in claim 9 wherein said silane is vinyltriethoxysilane or a surfactant as defined in claim 7.

Claim 14

. Integral additive as claimed in claim 10 containing said polymerizable unsaturated hydrolyzable silane and said surfactant as defined in claim 1.

Claim 15

Integral additive as claimed in claim 10 containing said polymerizable unsaturated organic compound and said surfactant.

Claim 16

A filled organic polymeric composition comprising (1) a mass of an organic polymer; (2) an inorganic filler dispersed in said mass; and (3) a surfactant dispersed in said mass comprising: (a) a siloxane containing at least one silicon-bonded alkyl group having at least 12 carbon atoms; and (b) a polyoxyalkylene compound having one or more polyoxyalkylene blocks each bonded at one end to a siloxane block, an alkyl group having at least 12 carbon atoms, or an alkenyl group, and bonded at the other end to an alkoxy group or a hydroxy group.

Claim 17

A filled organic polymeric composition comprising (1) a mass of an organic polymer; (2) an inorganic filler dispersed in said mass; and (3) a surfactant dispersed in said mass comprising: (a) a siloxane containing at least one silicon-bonded alkyl group having at least 12 carbon atoms; and (b) a polyoxyalkylene compound having one or more polyoxyalkylene blocks each bonded at one end to a siloxane block, an alkyl group having at least 12 carbon atoms, or an alkenyl group, and bonded at the other end to an alkoxy group or a hydroxy group.

Claim 18

The filled organic polymeric composition as claimed in claim 15wherein said mass of organic polymer is a thermoplastic polymer.

Claim 19

-17 . The filled thermoplastic organic polymeric composition as claimed in claim 16 wherein said polymer is high density polyethylene or polypropylene.

Claim 20

The filled organic polymeric composition as claimed in claim 15 to 17 also containing a polymerizable unsaturated organic compound having at least two polymerizable unsaturated groups reacted therein or a polymerizable unsaturated hydrolyzable silane reacted therein.

Claim 21

The filled thermoplastic organic polymeric composition claimed in claim 16 or 17 in which said silane is gamma-methacryloxypropyltrimethoxysilane or vinyltriethoxysilane.

Claim 22

The filled thermoplastic organic polymeric composition as claimed in claim 18 wherein said silane is gamma-methacryloxypropyltrimethoxysilane or vinyltriethoxysilane and said polymerizable unsaturated organic compound is trimethylolpropane triacrylate.

Claim 23

An integral additive for improving the physical properties of thermoplastic organic polymer filled with inorganic fillers comprising a mixture of (1) a reinforcement promoter having at least two reactive olefinic double bonds, said promoter being characterized by having a promoter index, P, being greater than zero, which is defined by the formula: P = n(n-1)Q(e+2)(1-2R f )-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively of at least one of the olefinic double bonds in the compound, and R f is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard and (2) a surfactant comprising: - (a) a siloxane containing at least one silicon-bonded alkyl group having at least 12 carbon atoms; or (b) a polyoxyalkylene compound having one or more polyoxyalkylene blocks each bonded at one end to a siloxane block, an alkyl group having at least 12 carbon atoms, or an alkenyl group, and.bonded at the other end to an alkoxy group or a hydroxy group.

Claim 24

An integral additive for improving the physical properties of thermoplastic organic polymer filled with inorganic fillers comprising a mixture of (1) a reinforcement promoter having at least two reactive olefinic double bonds, said promoter being characterized by having a promoter index, P, being greater than zero, which is defined by the formula: P = n(n-1)Q(e+2)(1-2R f )-2.5 wherein n is the number of olefinic double bonds in the promoter, Q and e are the Alfrey-Price resonance and polarity parameters, respectively of at least one of the olefinic double bonds in the compound, and R f is the relative flow ratio of the promoter measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard and (2) a surfactant comprising: - (a) a siloxane containing at least one silicon-bonded alkyl group having at least 12 carbon atoms; or (b) a polyoxyalkylene compound having one or more polyoxyalkylene blocks each bonded at one end to a siloxane block, an alkyl group having at least 12 carbon atoms, or an alkenyl group, and.bonded at the other end to an alkoxy group or a hydroxy group.

Claim 25

An integral additive for improving the physical properties of thermoplastic organic polymer filled with inorganic fillers comprising a mixture of (1) two interfacial agents wherein: (a) said agents are capable of copolymerization with each other; (b) at least one agent contains at least one reactive olefinic double bond capable of mechanico-chemical grafting to the polymer; (c) one agent is more highly adsorbable onto the filler surface while the other agent is more highly soluble in the filled polymer; and (d) said agents have a synergy index, S, being greater than zero, which is defined by the formula: S = 50 (Q A +Q S -0.2)(1-10Rf)(0.5-Δ 2 ) wherein Q A and 0 s are the Alfrey-Price resonance parameters of the most reactive olefinic double bonds in the adsorbable and soluble agents, respectively; R f is the relative flow ratio of the adsorbable agent measured by thin layer chromatography on a neutral silica gel using xylene as the eluant and di-n-butyl fumarate as the standard, and Δ is the difference between the Hildebrand solubility parameter of the soluble agent and that of the polymer, and (2) a surfactant as defined in claim 21.