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Polymer additives supplied by Polytechs

4 Products match your search

PW 52

by Polytechs

PW 52 by Polytechs is a high molecular weight polyisobutylene tackifier based cling masterbatch in linear low density polyethylene(LLDP). It is a dry free flowing pellet. PW 52 is used to produce stretchwrap film from LLDPE, LDPE and other polyolefins for the applications of palletwrap, silagewrap and foodwrap. It can be used on either blown film or cast film process. Polymers used with PW 52 masterbatch must not contain any antiblocking additive, slip agent, or have a density higher than 0.923, as this will prevent the migration of cling additive. Migration time for good cling properties is usually 24 to 72 hours. On monolayer blown film lines, 10% PW 52 by weight should be added to resin mix. On monolayer cast lines , 4 to 6 % PW52 should be added. On multiple-layer film lines, PW52 is usually added to the skin layers only. Addition level depends on which layer is used and the thickness of layer. Polyisobutylene is allowed by the FDA for use in contact with food ( 21 CFR 117.1430 ) and also meets the requirements of EC Directive 90/128/EEC.
  • Sustainable option

PW 70

by Polytechs

PW 70 by Polytechs is a concentrate of medium molecular weight polyisobutylene tackifier in linear low density polyethylene. It is a cling agent. It is a dry free-flowing pellet. It is designed to produce stretch film from LLDPE, LDPE or other polyolefins for the applications of palletwrap, silagewrap and foodwrap. It can be used in both blown or cast film process. Polymers used with PW 70 must not contain any slip or antiblock additives or have a density higher than 0.923 as this will prevent the migration of the cling additive. Migration time for good cling properties is 24-72 hours. For monolayer blown films 6 % PW 70 by weight should be added to LLDPE ( or resin mix) and for monolayer cast films is 2 and 3%. It is allowed by the FDA for use in contact with food ( 21 CFR 177.1430 (a) (b[2]) (c) and 21 CFR 177.1520 (c), (3.1a)) and also meets the requirements of EU Regulation 10/2011 and its amendments.

PW 60

by Polytechs

PW 60 by Polytechs is a high molecular weight polyisobutylene tackifier based cling masterbatch in linear low density polyethylene(LLDP). It is a dry free flowing pellet. PW 60 is used to produce stretchwrap film from LLDPE, LDPE and other polyolefins for the applications of palletwrap, silagewrap and foodwrap. It can be used on either blown film or cast film process. Polymers used with PW 60 masterbatch must not contain any Antiblocking additive, slip agent, or have a density higher than 0.923, as this will prevent the migration of cling additive. Migration time for good cling properties is usually 24 to 72 hours. On monolayer blown film lines, 10% PW 60 by weight should be added to resin mix. On monolayer cast lines, 4 to 6 % PW 60 should be added. On multiple-layer film lines, PW 60 is usually added to the skin layers only. Addition level depends on which layer is used and the thickness of layer. Polyisobutylene and polyethylene are allowed by the FDA for use in contact with food ( 21 CFR 177.1430 and 21 CFR 177.1520) and also meets the requirements of EC Directive 90/128/EEC and EC Directive 94/62/EC.

PW 66

by Polytechs

PW 66 by Polytechs is a cling masterbatch containing concentrate of Polyisobutylene (PIB) of an average molecular weight of 1250 in Linear Low Density Polyethylene. It is used as a cling agent to make stretchwrap films from LLDPE or LDPE. It is a dry free-flowing pellet. It is designed to produce stretch film from LLDPE, LDPE or other polyolefins for the applications of palletwrap, silagewrap and foodwrap. It can be used in both blown or cast film process. Polymers used with PW 66 must not contain any slip or antiblock additives or have a density higher than 0.923 as this will prevent the migration of the cling additive. Migration time for good cling properties is 24-48 hours. For monolayer blown films, 7% of PW 66 by weight should be added to LLDPE (or resin mix). For monolayer cast films 3% of PW 66 should be added. On multilayer film lines, PW 66 is often added to the skin layers only. Addition rate depends on which layer is used and the layer thickness. Polyisobutylene is allowed by the FDA for use in contact with food (21 CFR 117.1430) and also meets the requirements of EC Directive 90/128/EEC.
  • Sustainable option
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