- Email: [email protected]
Rheology modifier
December
I994
Additives for Polymers
applications. It is said to process well. Contact: Dow Chemical Co, 2040 Dow Center, Midland, MI 48674, USA. Tel: +I800-447-4369.
Oxazolidine
curing agents
Industrial Copolymers Ltd in the UK has introduced two oxazolidine curing agents which are said to be suitable for use in polyurethane coatings, sealants and elastomers. They are marketed as the Incozol range. Both products are said to enable rapid curing of aliphatic-based moisture-triggered systems without carbon dioxide gassing and subsequent ‘pin-holing’ of the cured material. Also referred to as ‘latent hardeners’, they remain inactive until application, whereupon they hydrolyze to reveal active amine and hydroxyl functions. Incozol 4 is a urethane biz-oxazolidine for general use, while Incozol LV exhibits a considerably lower viscosity than conventional products of this type. Contuct: Industriul Copolymers Ltd, PO Box 347, Prirnrose Hill, London Road, Preston, PRI 4LT, UK. Tel: i-44-772-201 964. Fax. i- 44- 772-883570.
Chemical
blowing
agent
Porofor KA 9149 from Miles inc is a chemical blowing agent that is said to combine low dusting with good dispersibility. Its primary use is in foamed film and sheet, eg wallpapers, floor coverings, leathercloth, etc. Contact: Miles Inc, Mobay Road, Pittsburgh, PA 15205-91741, USA. Tel: + I-41 2-777-2000. Fax: + I-412-777-7413.
Rheology
modifier
Paraloid EXL 3611 is a methyl methacrylatebutadiene-st,yrene copolymer that facilitates extrusion blow-moulding of nylons by improving melt viscosity at low-shear. Its effect in high-shear regimes is only marginal. The additive is also intended for use in low O1994 Elsevier Science Ltd
molecular weight grades and recyclate, where the supplier says it will significantly improve processing during injection moulding and extrusion. It also improves elongation at break and impact strength, owing to its very low glass transition temperature of -76°C. Contact: Rohm & Haas GmbH, Postfach 940322, D-60461, Frankfurt, Germany. Tel: + 49-69- 789-96. Fax: + 49-69-289-5356.
Hydrophobic
concentrate
Himont USA Inc, has introduced the Xantrix additive delivery system for use in hygienic and medical applications that require reduced absorption of fluids. The line is available in free-flowing polypropylene spheres at loadings as much as 25%. Contact: Himont USA Inc, 2801 Centerville Road, Box 15439, Wilmington, DE 19850, USA. Tel: +l-302-996-6000. Fu: +I -302996-6051.
Calcium carbonate extenders
fillers/
JM Huber has introduced Optifil and Optifil T, which are calcium carbonate fillers/ extenders made from stone with a chalk-like morphology. They are said to reduce costs while maintaining the physical properties of vinyl siding, profiles and other plastics products. Contact: JM Huber Carp, Chemical Division, Box 310, Havre de Grace, MD 21078, USA. Tel: + I-41 o-939-3500. Fax: + I-41 0-9399210.
Biocide with good processing characteristics A 5% active-ingredient product, Intercitle ABF5 OD from Akcros Chemicals America, is said to offer improved dispersion characteristics and ease of handling during processing. The product is an additional grade in the lntercide ABF liquid biocide series. which come as 2% and 5% active ingredient
I994
Additives for Polymers
applications. It is said to process well. Contact: Dow Chemical Co, 2040 Dow Center, Midland, MI 48674, USA. Tel: +I800-447-4369.
Oxazolidine
curing agents
Industrial Copolymers Ltd in the UK has introduced two oxazolidine curing agents which are said to be suitable for use in polyurethane coatings, sealants and elastomers. They are marketed as the Incozol range. Both products are said to enable rapid curing of aliphatic-based moisture-triggered systems without carbon dioxide gassing and subsequent ‘pin-holing’ of the cured material. Also referred to as ‘latent hardeners’, they remain inactive until application, whereupon they hydrolyze to reveal active amine and hydroxyl functions. Incozol 4 is a urethane biz-oxazolidine for general use, while Incozol LV exhibits a considerably lower viscosity than conventional products of this type. Contuct: Industriul Copolymers Ltd, PO Box 347, Prirnrose Hill, London Road, Preston, PRI 4LT, UK. Tel: i-44-772-201 964. Fax. i- 44- 772-883570.
Chemical
blowing
agent
Porofor KA 9149 from Miles inc is a chemical blowing agent that is said to combine low dusting with good dispersibility. Its primary use is in foamed film and sheet, eg wallpapers, floor coverings, leathercloth, etc. Contact: Miles Inc, Mobay Road, Pittsburgh, PA 15205-91741, USA. Tel: + I-41 2-777-2000. Fax: + I-412-777-7413.
Rheology
modifier
Paraloid EXL 3611 is a methyl methacrylatebutadiene-st,yrene copolymer that facilitates extrusion blow-moulding of nylons by improving melt viscosity at low-shear. Its effect in high-shear regimes is only marginal. The additive is also intended for use in low O1994 Elsevier Science Ltd
molecular weight grades and recyclate, where the supplier says it will significantly improve processing during injection moulding and extrusion. It also improves elongation at break and impact strength, owing to its very low glass transition temperature of -76°C. Contact: Rohm & Haas GmbH, Postfach 940322, D-60461, Frankfurt, Germany. Tel: + 49-69- 789-96. Fax: + 49-69-289-5356.
Hydrophobic
concentrate
Himont USA Inc, has introduced the Xantrix additive delivery system for use in hygienic and medical applications that require reduced absorption of fluids. The line is available in free-flowing polypropylene spheres at loadings as much as 25%. Contact: Himont USA Inc, 2801 Centerville Road, Box 15439, Wilmington, DE 19850, USA. Tel: +l-302-996-6000. Fu: +I -302996-6051.
Calcium carbonate extenders
fillers/
JM Huber has introduced Optifil and Optifil T, which are calcium carbonate fillers/ extenders made from stone with a chalk-like morphology. They are said to reduce costs while maintaining the physical properties of vinyl siding, profiles and other plastics products. Contact: JM Huber Carp, Chemical Division, Box 310, Havre de Grace, MD 21078, USA. Tel: + I-41 o-939-3500. Fax: + I-41 0-9399210.
Biocide with good processing characteristics A 5% active-ingredient product, Intercitle ABF5 OD from Akcros Chemicals America, is said to offer improved dispersion characteristics and ease of handling during processing. The product is an additional grade in the lntercide ABF liquid biocide series. which come as 2% and 5% active ingredient