Plastics industry - 408 entries found
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1972
CIS 73-292
Wandrey P.A.
The fire and explosion hazards of organic peroxides and blowing agents used in plastics manufacture
Über die Brand- und Explosionsgefährlichkeit der als Hilfsstoffe bei der Kunststoffherstellung verwendeten organischen Peroxide und Blähmittel [in German]
The two active oxygen atoms in the chemical structure of organic peroxides and blowing agents sometimes make it necessary to market and use these substances with the addition of an inhibitor. Some of these substances are highly sensitive to mechanical stress (impact and friction) and heat. The resultant reaction is dependent on the quantities involved and the type of container. Dissipation of the heat generated by the exothermic reaction is often a decisive factor in the reaction velocity. The article contains numerous data on reaction processes and valuable information on the safe use of peroxides.
VFDB-Zeitschrift, May 1972, Vol.21, No.2, p.54-59. 17 ref.
CIS 73-293
Jach W.
Exothermic reactions of catalysts in plastics processing demonstrated by a number of fires
Exotherme Reaktionen zwischen Hilfsstoffen bei der Kunstharzverarbeitung dargestellt an Brandfällen [in German]
A review of the chemistry and main physical properties of organic peroxides and the explosion and fire hazards involved in their manufacture. Precautionary measures are indicated. The decomposition hazard of 8 organic perioxides is indicated by presentation of their critical temperatures (flashpoint, ignition point and decomposition point). When polyester resins are processed with organic perioxides, exothermic reactions may occur and lead to fires. A number of typical fires are described and the results of the subsequent investigations reported. The exothermic reaction temperatures of a number of mixtures are indicated and corresponding safety measures presented.
VFDB-Zeitschrift, May 1972, Vol.21, No.2, p.49-54. Illus.
CIS 73-466
Schmidt L., Schmidt A.
Wood - Plastics
Holz - Kunststoffe [in German]
The previous edition of this loose-leaf collection, which was limited to the timber industry (CIS 71-436), has now been extended to cover plastics processing machines. The volume contains all the safety regulations in force in the Federal Republic of Germany for machines, equipment, plant and other production material for the wood and plastics industry; accident-prevention regulations, ordinances, data sheets, directives, etc. with appendices and explanations. 3 subject indexes - logging, woodprocessing and woodworking, and plasting processing - indicate the regulations to be consulted in each case. ILO Convention 119 and Recommendation 118 on the guarding of machinery are also reproduced.
Schriftenreihe Maschinenschutz, Deutscher Fachschriften-Verlag, Felsenstrasse 23, 62 Wiesbaden-Dotzheim, Federal Republic of Germany, Apr. 1972. 1st supplement. 512p. Illus. Bibl.
CIS 73-998
Dibie J.
Plastics [France]
Les plastiques [France] [in French]
A general review of the methods of manufacturing and processing plastics, followed by a study of the products falling within 2 main categories: thermoplastics (polyvinyl resins; polystyrenes, co-polymers and substituted polymers; polyolefins; fluorinated poyethylenes, etc.) and thermosetting plastics (phenolic resins; amino resins, polyesters, epoxy resins; synthetic rubbers; silicones). The article indicates in each case toxicological hazards and safety measures, with regard to the basic products, catalysers, plasticisers, solvents, stabilisers, fillers and pigments. A final chapter is devoted to the various uses made of plastics and the hazard involved. There is a list of all substances referred to in the article.
Cahiers de médecine interprofessionnelle, 2nd and 3rd quarters 1972, Vol.12, No.46-47., p.5-134. 26 ref.
CIS 73-392
(Hauptverband der gewerblichen Berufsgenossenschaften, Bonn)
Safety rules for the hot-air vulcanisation of hard-rubber mixtures [Federal Republic of Germany]
Sicherheitsregeln für das Vulkanisieren von Hartgummimischungen mit Heissluft [in German]
Rules for the construction and equipment of vulcanisation chambers, pressure and temperature-measurement control equipmnt and the installation of pressure- and temperature-limiting devices. Brief requirements on maintenance and operation are included. Relevant accident prevention regulations are indicated.
Carl Heymanns Verlag KG, Gereonstrasse 18-32, 5 Köln 1, Federal Republic of Germany, Apr. 1972. 6p.
1971
CIS 72-2519
Compression and transfer molding and plastics
Injuries occuring in compression moulding usually involve hot materials or equipment, points of operation, flying particles, and excessive heat. A review of the processes involved in compression moulding is followed by a discussion of the precautions required to prevent injuries to operators. Automatic and semi-automatic moulding presses are dealt with separately, and special attention is paid to the design of hydraulic systems.
National Safety Council, 425 North Michigan Avenue, Chicago, Ill. 60611, USA, 1971. 6p. Illus. 9 ref.
1970
CIS 72-1974
Calenders - Safety regulations
Válcovací stroje - Bezpečnostní předpisy [in Czech]
This standard applies to calenders for rubber, plastics and similar materials, but not to pigment grinding mills, etc. It supplements standard CSN 69 0030. It contains technical requirements (general design, height of rollers, arrangement of cut-out and braking equipment) that must be met by these machines. There are special provisions for calenders arranged behind mills, and fluted-roll calenders. Operating and maintenance requirements are also specified.
Bureau of Standards (Úřad pro normalizaci), Prague, Czechoslovakia. Standard approved on 11 Dec. 1970. 4p. Illus. Price: Kcs.8.50.
1967
CIS 72-2745
Yamada S.
Toxic polyneuritis in workers exposed to n-hexane
n-Hexane toriatsukaisha ni hassei shita tahatsusei-shinkeien no gen-in no tsuikyu to sono shorei ni tsuite [in Japanese]
Investigation of 17 cases of toxic polyneuritis associated with exposure to n-hexane of varying degrees of purity is described. The result was the temporary reduction of the Japanese TLV for n-hexane to 100ppm. 6 cases occurred in a polyethylene-laminate manufacturing plant in which n-hexane concentrations of 1000-2500ppm were measured; the n-hexagne here contained impurities such as tetraisopropultitanium, tetrabutyltitanium, methylpentane and methylcyclopentane, and these impurities were suspected to be at the origin of the nerve toxic effects. The other 11 cases occurred in a pharmaceutical plant using n-hexane of 95% purity and in which atmospheric concentrations of 500-1000ppm were measured. n-Hexane itself causes toxic polyneuritis, as confirmed by animal experiments.
Japanese Journal of Industrial Health - Sangyō-Igaku, Aug. 1967, Vol.9, No.7, p.651-659. Illus. 11 ref.
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