Processing and use of carbide lime

Details Processing and use of carbide lime Processing and use of carbide lime

C - Chemistry, Metallurgy

08

K

C08K 3/22 (2006.01) C08K 3/26 (2006.01)

Patent

CA 2296609

A composition of thermoplastic polymer and powdered dried carbide lime. The composition may also be a composition comprising (a) 5-60 parts by weight of powdered dried carbide lime; (b) 20-95 parts by weight of at least one thermoplastic material selected from the group consisting of thermoplastic polymer, thermoplastic elastomer and thermoplastic rubber; and (c) 0-60 parts by weight of at least one additive selected from lubricants; stabiliser; antioxidants; plasticisers; pigments and dyes; anti-blocking, anti-static, blowing and release agents; flame-retardants; impact modifiers; coupling and wetting agents; other processing aids and fibrous reinforcing agents. Processes for preparing the powdered dried carbide lime for use as fillers in plastics are also disclosed.

L'invention concerne une composition de polymère thermoplastique et de chaux de carbure séchée pulvérulente. Cette composition peut également comprendre (a) 5 à 60 parties en poids de chaux de carbure séchée pulvérulente; (b) 20-95 parties en poids d'au moins un matériau thermoplastique sélectionné dans le groupe comprenant les polymères thermoplastiques, les élastomères thermoplastiques et les caoutchoucs thermoplastiques; et (c) 0 à 60 parties en poids d'au moins un additif sélectionné parmi des lubrifiants, stabilisants, antioxydants, plastifiants, pigments et colorants, agents antiadhérents, agents antistatiques, agents gonflants et agents de démoulage, agents ignifugeants, agents de modification de la résistance au choc, agents de couplage et agents mouillants, autres additifs et agents de renforcement fibreux. L'invention concerne des procédés pour préparer de la chaux de carbure séchée pulvérulente servant de charge dans des plastiques.

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