Acronal acrylic resins

Transcription

1 Technical Information EVP e, August 2005 Supersedes TI/ED 134, TI/ED 1104, TI/ED 1105 (all dates/languages) Page 1 of 5 = registered trademark of BASF Aktiengesellschaft, unless otherwise indicated acrylic resins soft acrylic resins, resistant to light and aging, for plasticizing cellulose nitrate and chlorine-containing binders for coatings with good flexibility and excellent adhesion Range 700 L copolymer from n-butyl acrylate und vinyl isobutyl ether Properties Physical form Shelf life highly viscous liquids or acrylic resins dissolved in ethyl acetate Kept cool and in sealed containers, acrylic resins can be stored for 2 years. Opened containers should be used up within short. For the grades containing ethyl acetate, the usual precautions for the storage of flammable liquids must be observed. 1 trial product, preliminary product specification

2 EVP e, August 2005 Seite 2 von 5 acrylic resins Product specifications 700 L Other properties 98.5 % mpa. s % 1,600 2,600 mpa. s shear rate D 100 s % mpa. s 98.5 % 20,000 50,000 mpa. s iodine color number (DIN 6162) 0 1 density at 20 C (68 F) (ISO 2811) ~ 1.05 g/cm³ flash point (DIN EN ISO 2719, DIN 51758) 150 C 302 F glass transition temperature T g (DSC) ~ 40 C ~ 40 F density at 20 C (68 F) (ISO 2811) ~ 0.97 g/cm³ flash point (DIN 51755) 6 C 21 F 700 L iodine color number (DIN 6162) 0 2 density at 20 C (68 F) (ISO 2811) ~ 0.96 g/cm³ flash point (DIN 51755) 4 C 25 F density at 20 C (68 F) (ISO 2811) ~ 1.04 g/cm³ flash point (DIN EN ISO 2719, DIN 51758) 109 C 228 F glass transition temperature T g (DSC) ~ 45 C ~ 49 F

3 EVP e, August 2005 Page 3 of 5 acrylic resins Solubility 4 F 4 L 700 L LR 8820 esters glycol ethers glycol ether acetates ketones aromatic hydrocarbons white spirit turpentine oil chlorinated hydrocarbons alcohols ethyl acetate tetrahydrofurane de-aromatized hydrocarbons isoparaffines Compatibility cellulose nitrate vinyl chloride polymers (e. g., Laroflex MP grades) polyvinyl ethers (e. g., Lutonal A grades, Lutonal M 40) polyacrylates natural resins (e. g., colophony) plasticizers (e. g., Palatinol Marken, Plastomoll DOA, Palamoll Marken, Plastigen G, castor oil) chlorinated rubber chlorinated paraffins styrene-acrylate copolymers alkyd resins melamine-formaldehyde resins (Luwipal ) = thinnable/compatible = thinnable, but not in methanol = slight formation of striae = limited Properties of the polymers Used as sole binders, acrylic resins only yield tacky coatings with limited resistances. They are therefore used in combination with other binder systems such as cellulose nitrate or chlorinated binders, for which they serve as plasticizers. With a sufficiently high dosage rate they can substitute the plasticizer normally required. Coatings based on acrylic resins adhere well even on difficult substrates and are resistant to aging. acrylic resins are not volatile, so the flexibility of films practically does not change with time.

4 EVP e, August 2005 Seite 4 von 5 acrylic resins and are hard to saponify and tenacious. The degree of polymerization of is lower than that of approx. 50 % in ethyl acetate. The lower of approx. 50 % in ethyl acetate allows the formulation of coatings with higher solids content or to incorporate binders of higher, e. g., cellulose nitrate 21 E instead of cellulose nitrate 24 E (DIN 53179). Coatings based on 700 L are well resistant to boiling water. LR 8820 a tacky and non-volatile acrylic resin with excellent fastness to light and resistance to saponification is preferably used to plasticize coatings raw materials and compounding plastics. Application acrylic resins are used, particularly in combination with cellulose nitrate, for formulating paper and film coatings, sealing wax, coatings for light metals and plastics and cellulose lacquers. Combined with chlorinated binders such as Laroflex MP grades, they yield coatings that are very resistant to hydrolysis for various substrates such as metals, concrete or fiber cement. When combined with suitable film-forming agents, they improve the adhesion of primers. Safety When handling these products, advice and information given in the safety data sheet must be complied with. Further, protective and workplace hygiene measures adequate for handling chemicals must be observed.

5 EVP e, August 2005 Page 5 of 5 acrylic resins Note The data contained in this publication are based on our current knowledge and experience. In view of the many factors that may affect processing and application of our product, these data do not relieve processors from carrying out their own investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product for a specific purpose. Any descriptions, drawings, photographs, data, proportions, weights, etc. given herein may change without prior information and do not constitute the agreed contractual quality of the product. It is the responsibility of the recipient of our products to ensure that any proprietary rights and existing laws and legislation are observed. BASF Aktiengesellschaft Performance Chemicals for Coatings, Plastics and Specialties Ludwigshafen, Germany