- Email: [email protected]
Siloxanes as heat and light stabilizers
October 199 7
Contact: Akcros Chemicals Ltd PO Box I, E&es, Manchester A430 OBH, UK; tel: +44-161 789 7300;fax: i-44-161 788 7886
Control of particle size gives key to TiO, quality Recent development of a proprietary technology has enabled Millennium to achieve very tight control over the particle size and size distribution in manufacturing titanium dioxide. Particle size is seen as a critical factor in product quality. Collective distribution of particle sizes will determine the end-use performance, because it affects optical efficiency, tinting strength, opacity and gloss, Two new grades are the first results of this technology: Tiona RCL- 188 and A-2000. The RCL grade is a high performance r-utile chloride product for the plastics industry, offering maximum tint strength because the distribution of inefficient large and small particles has been minimized. The A-2000 grade is an anatase type for the paper industry, giving high opacity. Contact: Millennium Inorganic Chemicals, World Headquarters, 200 International C’ircle, Suite 5000, Hunt Valley, MD 21030, [ISA; tel: +I-4ZO 229 4400; fax: I I-410 229 4355
FR masterbatch for PP fibres has good processability A new flame-retardant masterbatch for polypropylene fibre applications has been developed by Constab Polymer-Chemie GmbH, Germany. Designated COVP 96/074 FR, it shows very good performance at low addition levels, with superior processability and improved compatibility with polypropylene. It also has good UV light stability in combination with HALS stabilizers, with no change in colour or gloss. The corrosion ef. fect on machinery is also reduced. Contact: C‘onrtah Polymer Chemie GmhH, Miihnetal 16, D-59602 Riithen, Germany, tei: * 49-29 52 8/9O;.fax: 4 49-29 52 3140
‘(‘31997Elscvicr Science
Additives for I’olvmers
More dispersions in Daniel’s alkyd pigments A green shade phthalocyanine blue and raw sienna dispersions have been added by Daniel Products to its Tint-Ayd ‘AL’ alkyd line of pigments - a free-flowing easily-used range of pigment concentrates for a variety of solvented maintenance and industrial coatings. l
The company, which recently celebrated its 40th anniversary, is a member of the Harcros Chemical Group, and has doubled its production capacity by moving to a two-shift operation.
C’ontact: Daniel Products Co, 400 Claremont Avenue, *Jersey City, NJ 07304, USA, tel: + I-201 432 0800; fax: + I-2Oi 432 0266
PATENTS W09616127 Siloxanes as heat and light stabilizers Rhone-Poulenc Chimie Priority date 18 November 1994; publication date 30 May 1996 Mixed polyorganosiloxanes having at least three siloxy units in the molecule, containing sterically hindered amine functions, are useful as heat and light stabilizers for polymers and have good compatibility. In a wide range of polymers they improve the resistance to degradation resulting from ultraviolet radiation, atmospheric oxygen and heat. The products have high molecular weight, excellent compatibility with the host polymer and good permanency of their stabilizing effect, JO8 109299 Vinyl chloride resin as moulding material Chisso Corporation Priority date 13 October 1994; publication date 30 April 1996 A vinyl chloride resin compound including 2-propylheptanoic acid metal salts and epoxy soybean oil compounds and phosphites
3
Contact: Akcros Chemicals Ltd PO Box I, E&es, Manchester A430 OBH, UK; tel: +44-161 789 7300;fax: i-44-161 788 7886
Control of particle size gives key to TiO, quality Recent development of a proprietary technology has enabled Millennium to achieve very tight control over the particle size and size distribution in manufacturing titanium dioxide. Particle size is seen as a critical factor in product quality. Collective distribution of particle sizes will determine the end-use performance, because it affects optical efficiency, tinting strength, opacity and gloss, Two new grades are the first results of this technology: Tiona RCL- 188 and A-2000. The RCL grade is a high performance r-utile chloride product for the plastics industry, offering maximum tint strength because the distribution of inefficient large and small particles has been minimized. The A-2000 grade is an anatase type for the paper industry, giving high opacity. Contact: Millennium Inorganic Chemicals, World Headquarters, 200 International C’ircle, Suite 5000, Hunt Valley, MD 21030, [ISA; tel: +I-4ZO 229 4400; fax: I I-410 229 4355
FR masterbatch for PP fibres has good processability A new flame-retardant masterbatch for polypropylene fibre applications has been developed by Constab Polymer-Chemie GmbH, Germany. Designated COVP 96/074 FR, it shows very good performance at low addition levels, with superior processability and improved compatibility with polypropylene. It also has good UV light stability in combination with HALS stabilizers, with no change in colour or gloss. The corrosion ef. fect on machinery is also reduced. Contact: C‘onrtah Polymer Chemie GmhH, Miihnetal 16, D-59602 Riithen, Germany, tei: * 49-29 52 8/9O;.fax: 4 49-29 52 3140
‘(‘31997Elscvicr Science
Additives for I’olvmers
More dispersions in Daniel’s alkyd pigments A green shade phthalocyanine blue and raw sienna dispersions have been added by Daniel Products to its Tint-Ayd ‘AL’ alkyd line of pigments - a free-flowing easily-used range of pigment concentrates for a variety of solvented maintenance and industrial coatings. l
The company, which recently celebrated its 40th anniversary, is a member of the Harcros Chemical Group, and has doubled its production capacity by moving to a two-shift operation.
C’ontact: Daniel Products Co, 400 Claremont Avenue, *Jersey City, NJ 07304, USA, tel: + I-201 432 0800; fax: + I-2Oi 432 0266
PATENTS W09616127 Siloxanes as heat and light stabilizers Rhone-Poulenc Chimie Priority date 18 November 1994; publication date 30 May 1996 Mixed polyorganosiloxanes having at least three siloxy units in the molecule, containing sterically hindered amine functions, are useful as heat and light stabilizers for polymers and have good compatibility. In a wide range of polymers they improve the resistance to degradation resulting from ultraviolet radiation, atmospheric oxygen and heat. The products have high molecular weight, excellent compatibility with the host polymer and good permanency of their stabilizing effect, JO8 109299 Vinyl chloride resin as moulding material Chisso Corporation Priority date 13 October 1994; publication date 30 April 1996 A vinyl chloride resin compound including 2-propylheptanoic acid metal salts and epoxy soybean oil compounds and phosphites
3