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EP688803 Blocked isocyanate prepolymers
Additives for Polymers
licensed to 46 producers worldwide, accounting for with a combined capacity of 83m tonnes/year. BP’s technology numbers 23 licensees, with a combined capacity of about 3.5m tonnes/year. A recent forecast by Chem Systems put global PE capacity at 38m tonnes (giving UC technology 21.8% and BP technology 9.2%). It went on to estimate that gas-phase plants account for 54% of total capacity, growing at S%/year. By 2005 it is forecast that more than 50% of LLDPE (growing at 7.2%.year) will be replaced by metallocenebased product in many applications. BP Chemicals, I Finsbury Circus, London
EC2M 7BA, UK; tel: +44-l 71496 4038; Dow Chemical Co, 2040 Dow Center, Midland MI 46874, USA; tel: +I-51 7 636 2303; fax: +I-517 638 9752; Exxon Chemical Europe Inc, Mechelsteenweg 363, B-1950 Kraainem, Belgium; +32-2- 769-3562; fmc: +32-2- 769-3446 Union Carbide Carp, 39 Old Ridgebury Road Danbury, CT 06817-0001, USA; tel: +I-203-794- 2533
Azo pigment rivals lightfastness of inorganics Claiming a level of heat-fastness found typically only in inorganics, a new high-strength azo yellow pigment has been introduced by Engelhard Corporation, under the designation Type 1296. It is said to rival the colour strength of diarylides, and is offered as an alternative to them, for use in polyolefins, styrenics and other plastics.
Contact: Engelhard Corp, Performance Minerals Group, IO1 Wood Ave S. CN 770, Iselin, NJ 08830-0770, USA; tel: +I-908 205 5000; fax: +I-908 205 67II
PATENTS JO8 109272
Light-scattering methacrylic plates Sumitomo Chemical Co Ltd Priority date: 7 October 1994 6
November 1996
Methacrylic resin plates dispersed with crosslinked polystyrene particles, contain 0.1-3.0 wt% at least of a stabiliser chosen from benzotriazoles, hindered amines, benzophenones and salicyclic esters, for use as covers of displays and illumination advertisement boards. EP688755 Alkoxylate as biodegradable low foam surfactant Hoechst AG Priority date: 21 June 1994 Mixed alkoxylation products prepared by reacting an organic compound with ethylene oxide and alkaline earth metal salt of alkyl succinic acid are especially useful as dispersants and wetting agents, and are easily biodegradable. JO7304855 Phenolic resin-based hardeners for epoxy resins Yuka Shell Epoxy KK Priority date: 13 May 1994 Epoxy resin hardeners containing 30-90 pts weight of phenolic resins of specified formulations of difunctional or trifunctional component and polyhydric phenol compounds have low melt viscosities, providing cured products with good heat and moisture resistance and low stress property. EP688803 Blocked isocyanate prepolymers Bayer AG Priority date: 22 June 1994 Isocyanate prepolymers based on aromatic diisocyanates. SU1755558 Improved process for filled PVC cable compounds Polymers Chemical Technical Research Institute, Vladimir Chemical Works Priority date: 27 December 1989 Suspension PVC is mixed with a mineral filler at a temperature increased from 3540°C to 50-6O”C, for 2-3 minutes. A suspension of stabilizer in plasticizer is added, continuing mixing at 80-129°C. The compounds
0 1996 Elsevier Science
licensed to 46 producers worldwide, accounting for with a combined capacity of 83m tonnes/year. BP’s technology numbers 23 licensees, with a combined capacity of about 3.5m tonnes/year. A recent forecast by Chem Systems put global PE capacity at 38m tonnes (giving UC technology 21.8% and BP technology 9.2%). It went on to estimate that gas-phase plants account for 54% of total capacity, growing at S%/year. By 2005 it is forecast that more than 50% of LLDPE (growing at 7.2%.year) will be replaced by metallocenebased product in many applications. BP Chemicals, I Finsbury Circus, London
EC2M 7BA, UK; tel: +44-l 71496 4038; Dow Chemical Co, 2040 Dow Center, Midland MI 46874, USA; tel: +I-51 7 636 2303; fax: +I-517 638 9752; Exxon Chemical Europe Inc, Mechelsteenweg 363, B-1950 Kraainem, Belgium; +32-2- 769-3562; fmc: +32-2- 769-3446 Union Carbide Carp, 39 Old Ridgebury Road Danbury, CT 06817-0001, USA; tel: +I-203-794- 2533
Azo pigment rivals lightfastness of inorganics Claiming a level of heat-fastness found typically only in inorganics, a new high-strength azo yellow pigment has been introduced by Engelhard Corporation, under the designation Type 1296. It is said to rival the colour strength of diarylides, and is offered as an alternative to them, for use in polyolefins, styrenics and other plastics.
Contact: Engelhard Corp, Performance Minerals Group, IO1 Wood Ave S. CN 770, Iselin, NJ 08830-0770, USA; tel: +I-908 205 5000; fax: +I-908 205 67II
PATENTS JO8 109272
Light-scattering methacrylic plates Sumitomo Chemical Co Ltd Priority date: 7 October 1994 6
November 1996
Methacrylic resin plates dispersed with crosslinked polystyrene particles, contain 0.1-3.0 wt% at least of a stabiliser chosen from benzotriazoles, hindered amines, benzophenones and salicyclic esters, for use as covers of displays and illumination advertisement boards. EP688755 Alkoxylate as biodegradable low foam surfactant Hoechst AG Priority date: 21 June 1994 Mixed alkoxylation products prepared by reacting an organic compound with ethylene oxide and alkaline earth metal salt of alkyl succinic acid are especially useful as dispersants and wetting agents, and are easily biodegradable. JO7304855 Phenolic resin-based hardeners for epoxy resins Yuka Shell Epoxy KK Priority date: 13 May 1994 Epoxy resin hardeners containing 30-90 pts weight of phenolic resins of specified formulations of difunctional or trifunctional component and polyhydric phenol compounds have low melt viscosities, providing cured products with good heat and moisture resistance and low stress property. EP688803 Blocked isocyanate prepolymers Bayer AG Priority date: 22 June 1994 Isocyanate prepolymers based on aromatic diisocyanates. SU1755558 Improved process for filled PVC cable compounds Polymers Chemical Technical Research Institute, Vladimir Chemical Works Priority date: 27 December 1989 Suspension PVC is mixed with a mineral filler at a temperature increased from 3540°C to 50-6O”C, for 2-3 minutes. A suspension of stabilizer in plasticizer is added, continuing mixing at 80-129°C. The compounds
0 1996 Elsevier Science