Additives for Polymers October I994 in profit for the first half of 1994. With market conditions improving, the prospects for maintaining and improving upon this position in both businesses are promising. The flame retardant businesses in North America and the UK performed very well despite severe price competition from China and Russia. The metallic stearate business had a strong first half, as did the non-lead stabilizer and dispersion businesses. Contact: Cookson Group plc, 130 Wood Street, London, EC2V 6EQ, UK. Tel: +44- 71-606-4400. Fax: i- 44- 71-606-2851. Ciba UK Group The sales of the UK Group of Ciba in the first half of 1994 rose by 1 %, compared to the corresponding period in 1993. The additives business totalled f2 1.4 million during this period, a 9% increase from 1993, and the pigments sector totalled E64.9 million, a ‘7% rise. Contact: Ciba-Geigy plc, Hulley Road, Macclesfleid, Cheshire, SKI0 2hX, UK. Tel: i- 44-625-421933. Fox: + 44-625-619002. QUALITY ASSURED ACCREDITATION Eastman Chemical Co Kingsport, Tennessee, USA. The Tenite Plastics Division Chemical Co has received of Eastman IS0 9002 registration for its manufacturing facilities in Kingsport, Tennessee, and Columbia, South Carolina in February and April 1994 respectively. Air Products & Chemicals Inc 7201 Hamilton Boulevard, Allentown, Pennsylvania, USA. The entire chemical manufacturing site of Air Products & Chemicals in Pasadena, Texas, has received IS0 9002 certification. The plant produces polyvinyl alcohol, acetic acid, nitric acid, orthotoluenediamine, and polyurethane intermediates. TECHNICAL BRIEFS GeoPlas - a multifunctional additive GeoPlas is a naturally-occurring black polymer described as an asphaltite. It is unique in hardness, polymer composition, purity and consistency. It is said that its compatibility with most common thermoplastics, thermosets, elastomers, oils and solvents makes it a valuable ingredient for use in many polymer/composite applications. When GeoPlas GP powder is dissolved in solvent, the resultant solutions are sometimes referred to as GeoPlas cutbacks. These solutions are claimed to form an excellent base for blending with other materials such as resins, protective coatings, paints and mastics. GeoPlas can also be hot fluxed (melted) to form a base which can then be cut back with solvents and fillers to meet various product requirements such as curing time, drying time, gloss and hardness. It is soluble in aliphatic, aromatic and chlorinated hydrocarbon solvents. GeoPlas has limited solubility in most ketones, but is soluble in mixed solvents containing ketones having some aromatics content. It is insoluble in water, alcohols and acetone. Normally it is readily soluble in aliphatic and aromatic solvents at ambient temperatures, provided at least moderate agitation is used. It dissolves well in styrene monomer and unsaturated polyester resin. Rate of solution will depend on solvent type, degree of mixing, and grade of GeoPlas. Rate of solution can be increased using a high energy high shear disperser such as a Cowles mixer. It is used in polyester and vinyl ester resins to provide improvements in moisture resistance, paint adhesion, secondary bonding, fibre wetting, weathering, electrical 10 O1994 Elsevier Science Ltd

Eastman Chemical Co

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Additives for Polymers October I994

in profit for the first half of 1994. With market conditions improving, the prospects for maintaining and improving upon this position in both businesses are promising. The flame retardant businesses in North America and the UK performed very well despite severe price competition from China and Russia. The metallic stearate business had a strong first half, as did the non-lead stabilizer and dispersion businesses. Contact: Cookson Group plc, 130 Wood Street, London, EC2V 6EQ, UK. Tel: +44- 71 -606-4400. Fax: i- 44- 71-606-2851.

Ciba UK Group

The sales of the UK Group of Ciba in the first half of 1994 rose by 1 %, compared to the corresponding period in 1993. The additives business totalled f2 1.4 million during this period, a 9% increase from 1993, and the pigments sector totalled E64.9 million, a ‘7% rise. Contact: Ciba-Geigy plc, Hulley Road, Macclesfleid, Cheshire, SKI0 2hX, UK. Tel: i- 44-625-421933. Fox: + 44-625-619002.

QUALITY ASSURED ACCREDITATION

Eastman Chemical Co Kingsport, Tennessee, USA.

The Tenite Plastics Division Chemical Co has received

of Eastman IS0 9002

registration for its manufacturing facilities in Kingsport, Tennessee, and Columbia, South Carolina in February and April 1994 respectively.

Air Products & Chemicals Inc 7201 Hamilton Boulevard, Allentown, Pennsylvania, USA.

The entire chemical manufacturing site of Air Products & Chemicals in Pasadena, Texas,

has received IS0 9002 certification. The plant produces polyvinyl alcohol, acetic acid, nitric acid, orthotoluenediamine, and polyurethane intermediates.

TECHNICAL BRIEFS

GeoPlas - a multifunctional additive

GeoPlas is a naturally-occurring black polymer described as an asphaltite. It is unique in hardness, polymer composition, purity and consistency. It is said that its compatibility with most common thermoplastics, thermosets, elastomers, oils and solvents makes it a valuable ingredient for use in many polymer/composite applications.

When GeoPlas GP powder is dissolved in solvent, the resultant solutions are sometimes referred to as GeoPlas cutbacks. These solutions are claimed to form an excellent base for blending with other materials such as resins, protective coatings, paints and mastics. GeoPlas can also be hot fluxed (melted) to form a base which can then be cut back with solvents and fillers to meet various product requirements such as curing time, drying time, gloss and hardness. It is soluble in aliphatic, aromatic and chlorinated hydrocarbon solvents. GeoPlas has limited solubility in most ketones, but is soluble in mixed solvents containing ketones having some aromatics content. It is insoluble in water, alcohols and acetone. Normally it is readily soluble in aliphatic and aromatic solvents at ambient temperatures, provided at least moderate agitation is used. It dissolves well in styrene monomer and unsaturated polyester resin. Rate of solution will depend on solvent type, degree of mixing, and grade of GeoPlas. Rate of solution can be increased using a high energy high shear disperser such as a Cowles mixer. It is used in polyester and vinyl ester resins to provide improvements in moisture resistance, paint adhesion, secondary bonding, fibre wetting, weathering, electrical

10 O1994 Elsevier Science Ltd