- Email: [email protected]
Universal masterbatches
October 1990
Additives for Polvmers
specially developed chlorinated alicyclic hydrocarbon. This combination has a high temperature resistance, (up to 3OOOC) and good electrical properties. Epoxy filler for boats
A new two-part epoxy filler is available from International Paint’s Yacht Division, for profiling on wood and metal hulls and in osmosis treatment of GFW hulls. Known as Inter-fill830, it replaces Interfill 500 at the same price but with a number of benefits. It has an SG of only 0.74, compared with 1.00 for the earlier formulation, and is easier to sand, with smaller microspheres which enable a finer finish to be achieved. Depths up to 2 cm can be filled without sagging, the company says.
Core material for GFW structures
Impag Great Britain has introduced a new core material for the production of light weight GRP structures. Called Spheretex, the material is a combination of hollow microspheres with reinforcing fibre. This can be in a woven, continuous form or as a random chopped strand mat. Future grades may use aramid or carbon fibres, says the firm. Typically, resin absorption is 40% lower than conventional cores which do not contain microspheres. Additionally, the presence of microspheres reduces the density, and so specific weight, by up to 50% compared to conventional materials.
Carbon fibres
RK Carbon will shortly commence production of a 23,000 filament count commercial grade carbon fibre, which it says will offer cost savings of up to 25% compared with 6,000 and 12,000 filament fibres. Designated KK 20K the new grade is produced from a much cheaper, and more readily available, acrylic precursor than the specialised precursors normally used.
Glass reinforced nylons
Atochem has added two long-fibre reinforced grades to the Rilsan nylon range, which it says are suitable for thinner and lighter injection moulded engineering components. Key properties of mouldings, compared with standard fibre-length reinforced grades, are impact resistance up by around 200%, improved dimensional stability and abrasion resistance, reduced moisture absorption, and improved surface finish. Designated MA 4505 FL and MA 4506 FL, they contain 30 and 50% of long fibres respectively, and are supplied as 15 mm long granules.
Universal masterbatches
Universal colour masterbatches have been introduced by Colourfast in the UK. Based on a multi-component carrier said to obviate the possibility of degradation of the physical
01990 Elsevier Science Publishers Ltd.
11
Additives for Polymers
October 1990
properties of polymers, they are used at 1%. The standard ordering quantity is 25 kg, but smaller amounts can be supplied. The range has been formulated without diarylide pigments, although some contain cadmium pigments. Formulations free of heavy metals are available to order. Glass reinforced polypropylene
Appryl, the joint subsidiary of Atochem and BP, has launched a range of polypropylene composite materials containing from 20-50% of long glass fibre reinforcement. They are made by a pultrusion process at up to 50 nz/min. on a pilot-scale plant, and the company plans to begin commercial-scale production shortly. The materials are based on PP of MFI 40, and hence have good flow properties, and they can be moulded by injection, or injection/compression moulding using cold moulds, which the company says leads to improved productivity. They are supplied as 15 mm long granules, with. a glass content between 20 and 50% to order. They are expected to compete with glass reinforced PA and PC, POM, PET and PBT, and die-stampable reinforced thermoplastics.
WC! stabilizers and lubricants agency intheuK
MHF Chemicals of Dorking, Surrey, has been appointed agent for the PVC stabilizers and lubricant systems produced by Reagens of Italy. The company offers a complete range of leadbased stabilizer systems in both powder and flake form. Also available is a wide range of liquid systems based upon calcium/ zinc, barium/zinc, and tin metal, including some high technology, low odour octyl-tin products. The latter are designed chemically to be intrinsically low odour, and are not perfumed or masked systems. Also on offer are Reablend lead-based composites. These powdered products are formed by chemically joining lead stabilizers and lubricants and bonded on to PVC resin or a process aid. They provide ease of weighing and handling, and eliminate the risk of airborne lead.
Liquid colourants
Metacol, the largest independent privately-owned liquid colour and additive manufacturer in the UK, has just completed a JZNO,OOO investment of its Hull factory, almost doubling the size of the facility.
Impact modifier plant in Holland
A joint venture plant to produce impact modifiers has been commissioned in Holland by Atochem and Mitsubishi Rayon. It will operate under the Metablen name.
Colour concentrates
A multi-purpose colour concentrate line is now available in 25 lb. bags through General Polymer distribution centres. Forty colours are offered on an off-the-shelf basis for compounding low-
12
01990
Elsevier Science Publishers Ltd.
Additives for Polvmers
specially developed chlorinated alicyclic hydrocarbon. This combination has a high temperature resistance, (up to 3OOOC) and good electrical properties. Epoxy filler for boats
A new two-part epoxy filler is available from International Paint’s Yacht Division, for profiling on wood and metal hulls and in osmosis treatment of GFW hulls. Known as Inter-fill830, it replaces Interfill 500 at the same price but with a number of benefits. It has an SG of only 0.74, compared with 1.00 for the earlier formulation, and is easier to sand, with smaller microspheres which enable a finer finish to be achieved. Depths up to 2 cm can be filled without sagging, the company says.
Core material for GFW structures
Impag Great Britain has introduced a new core material for the production of light weight GRP structures. Called Spheretex, the material is a combination of hollow microspheres with reinforcing fibre. This can be in a woven, continuous form or as a random chopped strand mat. Future grades may use aramid or carbon fibres, says the firm. Typically, resin absorption is 40% lower than conventional cores which do not contain microspheres. Additionally, the presence of microspheres reduces the density, and so specific weight, by up to 50% compared to conventional materials.
Carbon fibres
RK Carbon will shortly commence production of a 23,000 filament count commercial grade carbon fibre, which it says will offer cost savings of up to 25% compared with 6,000 and 12,000 filament fibres. Designated KK 20K the new grade is produced from a much cheaper, and more readily available, acrylic precursor than the specialised precursors normally used.
Glass reinforced nylons
Atochem has added two long-fibre reinforced grades to the Rilsan nylon range, which it says are suitable for thinner and lighter injection moulded engineering components. Key properties of mouldings, compared with standard fibre-length reinforced grades, are impact resistance up by around 200%, improved dimensional stability and abrasion resistance, reduced moisture absorption, and improved surface finish. Designated MA 4505 FL and MA 4506 FL, they contain 30 and 50% of long fibres respectively, and are supplied as 15 mm long granules.
Universal masterbatches
Universal colour masterbatches have been introduced by Colourfast in the UK. Based on a multi-component carrier said to obviate the possibility of degradation of the physical
01990 Elsevier Science Publishers Ltd.
11
Additives for Polymers
October 1990
properties of polymers, they are used at 1%. The standard ordering quantity is 25 kg, but smaller amounts can be supplied. The range has been formulated without diarylide pigments, although some contain cadmium pigments. Formulations free of heavy metals are available to order. Glass reinforced polypropylene
Appryl, the joint subsidiary of Atochem and BP, has launched a range of polypropylene composite materials containing from 20-50% of long glass fibre reinforcement. They are made by a pultrusion process at up to 50 nz/min. on a pilot-scale plant, and the company plans to begin commercial-scale production shortly. The materials are based on PP of MFI 40, and hence have good flow properties, and they can be moulded by injection, or injection/compression moulding using cold moulds, which the company says leads to improved productivity. They are supplied as 15 mm long granules, with. a glass content between 20 and 50% to order. They are expected to compete with glass reinforced PA and PC, POM, PET and PBT, and die-stampable reinforced thermoplastics.
WC! stabilizers and lubricants agency intheuK
MHF Chemicals of Dorking, Surrey, has been appointed agent for the PVC stabilizers and lubricant systems produced by Reagens of Italy. The company offers a complete range of leadbased stabilizer systems in both powder and flake form. Also available is a wide range of liquid systems based upon calcium/ zinc, barium/zinc, and tin metal, including some high technology, low odour octyl-tin products. The latter are designed chemically to be intrinsically low odour, and are not perfumed or masked systems. Also on offer are Reablend lead-based composites. These powdered products are formed by chemically joining lead stabilizers and lubricants and bonded on to PVC resin or a process aid. They provide ease of weighing and handling, and eliminate the risk of airborne lead.
Liquid colourants
Metacol, the largest independent privately-owned liquid colour and additive manufacturer in the UK, has just completed a JZNO,OOO investment of its Hull factory, almost doubling the size of the facility.
Impact modifier plant in Holland
A joint venture plant to produce impact modifiers has been commissioned in Holland by Atochem and Mitsubishi Rayon. It will operate under the Metablen name.
Colour concentrates
A multi-purpose colour concentrate line is now available in 25 lb. bags through General Polymer distribution centres. Forty colours are offered on an off-the-shelf basis for compounding low-
12
01990
Elsevier Science Publishers Ltd.