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Limited, Maldon, UK. Their SM4 gauge, a non-contacting infra-red absorption instrument, is particularly suited to monitoring the thickness of pressure-sensitive adhesives and an accuracy within 0.2 g/m = is claimed. One advantage of this instrument is that it can be set to measure adhesive coatings in either the wet or dry state. Due to the fact that the instrument is used in the backscatter mode, the reading obtained is not adversely affected by the moisture content of the substrate. The gap between the SM4 sensor head and the material to be measured can be up to 200 mm wide. A further claim is that the capital cost of the installation of an infrared gauging system is less than that of other equivalent systems; thus, making it available to small production plants. Fig. 2 One of the fleet of trucks recently acquired to transport Borden adhesive products
Range of curing agents
Under new management
An integrated range of epoxy curing agents, based on organic diamines, and designed for use with liquid epoxy resins, which cure at ambient temperatures have been made available by the Boston Chemical Company Limited, West Yorkshire, UK. Throughout the range, there is a systematic grouping which will facilitate formulations with resins, and which will allow future additions to the range. Within each group the same modifying agent will be used; designed to impart either chemical resistance or good colour and low odour. The properties of each curing agent within a group will be determined by the type of diamine it contains. These will impart such properties as colour, curing rate, viscosity, or pot-life. It has been so arranged that any of the curing agents throughout the whole range may be used in the same proportion with any particular resin.
Touchdown Adhesive Products Limited, manufacturers of selfadhesive products for the identification market, have recently changed ownership, name and location. Formed in 1973, the company had, of late, been operating within Storeys Decorative Products (a member of the Turner Newall group). It has now been acquired by two members of the senior management of Storeys Decorative Products: Mark Bateson becoming Director and General Manager and Robin Lowman, the Research and Development Manager;, and is operating under the name: Ultramark Adhesive Products Limited, from 38 Port
The Boston Chemical Company Limited, Thorp Arch Trading Estate, Wetherby, West Yorkshire, LS23 7BZ, England.
Royal Avenue, Lune Industrial Estate, Lancaster, Lancs, LA 1 5QP, England. Coating
check
Using infra-red techniques, the thickness of adhesive coatings being applied to substrates can be measured with great accuracy, claim Infrared Engineering
Infrared Engineering Limited, Galliford Road, The Causeway, Maldon, Essex, CM9 7XD, England.
Diamond bonding A method of bonding diamonds to metal has recently been developed and patented by chemists working at the Los Alamos National Laboratory, NM, USA. Described as an outgrowth of explosives bonding technology, the method, in effect, uses a fluorocarbon resin (marketed under the trade name of Teflon) as the bonding material. The technique involves fluorinating the surface of industrial diamonds. In this state, the diamonds can be chemically bonded to the fluorocarbon resin. After drying, this material can then be chemically bonded to aluminium. If the aluminium is the surface of a grinding wheel, then further compression of the material can produce diamond-encrusted grinding wheels capable of grinding 'new' types of hard ceramics and metals. It is claimed that this method of producing grinding wheels is a less expensive method than the traditional epoxy-gluing of diamond-encrusted wheels.
INT.J.ADHESION AND ADHESIVES APRIL 1983
61
Limited, Maldon, UK. Their SM4 gauge, a non-contacting infra-red absorption instrument, is particularly suited to monitoring the thickness of pressure-sensitive adhesives and an accuracy within 0.2 g/m = is claimed. One advantage of this instrument is that it can be set to measure adhesive coatings in either the wet or dry state. Due to the fact that the instrument is used in the backscatter mode, the reading obtained is not adversely affected by the moisture content of the substrate. The gap between the SM4 sensor head and the material to be measured can be up to 200 mm wide. A further claim is that the capital cost of the installation of an infrared gauging system is less than that of other equivalent systems; thus, making it available to small production plants. Fig. 2 One of the fleet of trucks recently acquired to transport Borden adhesive products
Range of curing agents
Under new management
An integrated range of epoxy curing agents, based on organic diamines, and designed for use with liquid epoxy resins, which cure at ambient temperatures have been made available by the Boston Chemical Company Limited, West Yorkshire, UK. Throughout the range, there is a systematic grouping which will facilitate formulations with resins, and which will allow future additions to the range. Within each group the same modifying agent will be used; designed to impart either chemical resistance or good colour and low odour. The properties of each curing agent within a group will be determined by the type of diamine it contains. These will impart such properties as colour, curing rate, viscosity, or pot-life. It has been so arranged that any of the curing agents throughout the whole range may be used in the same proportion with any particular resin.
Touchdown Adhesive Products Limited, manufacturers of selfadhesive products for the identification market, have recently changed ownership, name and location. Formed in 1973, the company had, of late, been operating within Storeys Decorative Products (a member of the Turner Newall group). It has now been acquired by two members of the senior management of Storeys Decorative Products: Mark Bateson becoming Director and General Manager and Robin Lowman, the Research and Development Manager;, and is operating under the name: Ultramark Adhesive Products Limited, from 38 Port
The Boston Chemical Company Limited, Thorp Arch Trading Estate, Wetherby, West Yorkshire, LS23 7BZ, England.
Royal Avenue, Lune Industrial Estate, Lancaster, Lancs, LA 1 5QP, England. Coating
check
Using infra-red techniques, the thickness of adhesive coatings being applied to substrates can be measured with great accuracy, claim Infrared Engineering
Infrared Engineering Limited, Galliford Road, The Causeway, Maldon, Essex, CM9 7XD, England.
Diamond bonding A method of bonding diamonds to metal has recently been developed and patented by chemists working at the Los Alamos National Laboratory, NM, USA. Described as an outgrowth of explosives bonding technology, the method, in effect, uses a fluorocarbon resin (marketed under the trade name of Teflon) as the bonding material. The technique involves fluorinating the surface of industrial diamonds. In this state, the diamonds can be chemically bonded to the fluorocarbon resin. After drying, this material can then be chemically bonded to aluminium. If the aluminium is the surface of a grinding wheel, then further compression of the material can produce diamond-encrusted grinding wheels capable of grinding 'new' types of hard ceramics and metals. It is claimed that this method of producing grinding wheels is a less expensive method than the traditional epoxy-gluing of diamond-encrusted wheels.
INT.J.ADHESION AND ADHESIVES APRIL 1983
61