- Email: [email protected]
Electroconductive pigments
Additives for Pokmers
Februatv 1990
including glass reinforced plastics, thermoset and themoplastic resins, prepregs, paints, adhesives and sealants to create materials resistant to fm. In appearance “ Ceepree” is a white glassy powder. It is added to the plastic as a raw material at the mixing/compounding
stage.
IICeepree” is formulated to melt progressively over temperatures from 350 to 9OOOCto encapsulate and protect the host material from fire. At temperatures between 900 and llOO°C “Ceepree” forms a strong integral crystalline barrier with the composite which is therefore able to contain fumes. For companies wishing to perform fire tests on development materials using mCeepree” , ICIs Corporate Fire Laboratory in Manchester is available to undertake the required work to meet all major fire test standards including BS 476: Parts 20-24; 1987 Resistance to Fire Test, as well as UL-94 and many others. For further information contact: Dr. David J. Parry, Soda Ash P~cts~ ICI C~~i~a~ & Polymers IX, P.O. Box 4, Mend House, ~orthwic~ Cheshire CW8 4DT, UK. Tel: (OSOSj 704188 Telex: 629655 ICIMOH G Fax: (0606j 781353
Cadmium-free coloured masterbatches
Mercury PIastics in the UK is extending its range of cadmium freemasterbatch, in response to this industry demand for alternatives to the criticised heavy metal. The environmentally friendly ’ range of colours is based on the use of organic pigments designed to offer the same strong, bright colours created through the use of cadmium. In the Mercury Colour Centre at the company’ s Watford facility, customers and end-users can discuss with the company’ s colourists to establish which pigments are most suitable for the chosen polymers.
Electroconductive pigments
Sachtleben introduced a range of electroconductive pigments at K ’ 89 which it claims are the first such products to be available in colours other than black. The inorganic pigments, now available as trial products, are either electroconductive coated or self conducting. They can be used in plastics, rubbers, adhesives and fibres as well as paints.
01990 Elsevier Science Publishers Ltd.
17
Februaw 1990
Additives for Polvmers
The new pigments come in three types: a rutile mixed metal oxide base provides colours such as brown and orange; a zinc oxide base gives light grey; and zinc sulphide is used to provide dark greens. Tests have been carried out in formulations with PVC, PP, LDPE, with good results, Sachtleben says. The pigments do not provide such good conductivity as conventional conducting pigments containing carbon black, the company believes, but it is confident that the conductivities produced are sufficient for the types of antistatic applications requiring such products.
BHT antioxidant from Thomas&van
Thomas Swan 8~Co. Ltd. of Consett, Co. Durham, (UK),
manufacturer of speciality chemicals, has introduced BHT (2,6 di tert butyl4-methyl phenol), an antioxidant with wide application in the polymer industry. The material is supplied as a homogeneous white crystalline powder with a minimum purity of 98%. It is soluble in white oil (0.5% wt) and at between 20 and 45% in a variety of solvents. It is insoluble in water. Information on antioxidant BHT is available from: Thomas Swan & Co. Ltd., Crookhall Works, Corlsett, Co. Durham DH8 7ND, UK. Tel: (0207j 505131 Telex: 53565 Fax 590467
Clarifying additive approved for food contact applications
The Health Protection Branch of the Canadian Bureau of Chemical Safety recently approved Milliken Chemical ’ s Millad 3905 polyolefme-clarifying additive for use in food contact applications. Since being introduced in 1980, the additive has been cleared for such applications by the US Food and Drug Administration, and by most European and Far Eastern countries. Polyolefins, particularly PP and LDPE, clarified with the additive are said to exhibit lower haze, improved gloss and good surface smoothness.
B00KS/l?UBLICATIONS Coupling agents 18
An extensive revised reference manual describing titanate, zirconate and aluminium coupling agents is available from 01990
Elsevier Science Publishers Ltd.
Februatv 1990
including glass reinforced plastics, thermoset and themoplastic resins, prepregs, paints, adhesives and sealants to create materials resistant to fm. In appearance “ Ceepree” is a white glassy powder. It is added to the plastic as a raw material at the mixing/compounding
stage.
IICeepree” is formulated to melt progressively over temperatures from 350 to 9OOOCto encapsulate and protect the host material from fire. At temperatures between 900 and llOO°C “Ceepree” forms a strong integral crystalline barrier with the composite which is therefore able to contain fumes. For companies wishing to perform fire tests on development materials using mCeepree” , ICIs Corporate Fire Laboratory in Manchester is available to undertake the required work to meet all major fire test standards including BS 476: Parts 20-24; 1987 Resistance to Fire Test, as well as UL-94 and many others. For further information contact: Dr. David J. Parry, Soda Ash P~cts~ ICI C~~i~a~ & Polymers IX, P.O. Box 4, Mend House, ~orthwic~ Cheshire CW8 4DT, UK. Tel: (OSOSj 704188 Telex: 629655 ICIMOH G Fax: (0606j 781353
Cadmium-free coloured masterbatches
Mercury PIastics in the UK is extending its range of cadmium freemasterbatch, in response to this industry demand for alternatives to the criticised heavy metal. The environmentally friendly ’ range of colours is based on the use of organic pigments designed to offer the same strong, bright colours created through the use of cadmium. In the Mercury Colour Centre at the company’ s Watford facility, customers and end-users can discuss with the company’ s colourists to establish which pigments are most suitable for the chosen polymers.
Electroconductive pigments
Sachtleben introduced a range of electroconductive pigments at K ’ 89 which it claims are the first such products to be available in colours other than black. The inorganic pigments, now available as trial products, are either electroconductive coated or self conducting. They can be used in plastics, rubbers, adhesives and fibres as well as paints.
01990 Elsevier Science Publishers Ltd.
17
Februaw 1990
Additives for Polvmers
The new pigments come in three types: a rutile mixed metal oxide base provides colours such as brown and orange; a zinc oxide base gives light grey; and zinc sulphide is used to provide dark greens. Tests have been carried out in formulations with PVC, PP, LDPE, with good results, Sachtleben says. The pigments do not provide such good conductivity as conventional conducting pigments containing carbon black, the company believes, but it is confident that the conductivities produced are sufficient for the types of antistatic applications requiring such products.
BHT antioxidant from Thomas&van
Thomas Swan 8~Co. Ltd. of Consett, Co. Durham, (UK),
manufacturer of speciality chemicals, has introduced BHT (2,6 di tert butyl4-methyl phenol), an antioxidant with wide application in the polymer industry. The material is supplied as a homogeneous white crystalline powder with a minimum purity of 98%. It is soluble in white oil (0.5% wt) and at between 20 and 45% in a variety of solvents. It is insoluble in water. Information on antioxidant BHT is available from: Thomas Swan & Co. Ltd., Crookhall Works, Corlsett, Co. Durham DH8 7ND, UK. Tel: (0207j 505131 Telex: 53565 Fax 590467
Clarifying additive approved for food contact applications
The Health Protection Branch of the Canadian Bureau of Chemical Safety recently approved Milliken Chemical ’ s Millad 3905 polyolefme-clarifying additive for use in food contact applications. Since being introduced in 1980, the additive has been cleared for such applications by the US Food and Drug Administration, and by most European and Far Eastern countries. Polyolefins, particularly PP and LDPE, clarified with the additive are said to exhibit lower haze, improved gloss and good surface smoothness.
B00KS/l?UBLICATIONS Coupling agents 18
An extensive revised reference manual describing titanate, zirconate and aluminium coupling agents is available from 01990
Elsevier Science Publishers Ltd.