Polyolefins cycloaliphatic

The introduction of functional groups into cycloaliphatic polyolefin backbones could allow significant control of surface properties such as adhesion, wettability, dyeability, compatibility, and printability and could lead to COC with improved properties. Catalysts based on Ni and Pd are intrinsically less sensitive to functional groups than those based on the early transition metals currently employed in industry [104]. 

Organic phosphites POR(OR )OR where R=Ci—C30 represents aliphatic, cycloaliphatic, or aromatic radical, are also able of inhibiting the thermal destruction of polyolefin [19]. Of light stabilizers, benzo-phenone derivatives have the ability for inhibiting thermal destruction of polyolefins, too. 

The abovementioned materials can be mixed with one another. A series of other polymers and resins can also be added if the substances listed in 1 to 4 form the bulk of the material. Additional materials are PE, PP, low molecular weight polyolefins, polyterpenes (mixtures of aliphatic and cycloaliphatic hydrocarbons produced by polymerisation of terpene hydrocarbons), polyisobutylene, butyl rubber, dammar gum, glycerine and pentaerythritol esters of rosin acid and their hydration products, polyolefin resins, hydrated polycyclopentadiene resin (substance mixtures manufactured by thermal polymerization of a mixture mainly composed of di-cyclopentadiene with methylcyclopentadiene, isoprene and piperylene which is then hydrogenated). 

Aliphatic and Cycloaliphatic Resins. Aliphatic and cycloaliphatic epoxy resins have been produced from the epoxidation of olefinic compounds. The epoxidation process involves the use of an olefinic or polyolefinic compound and a peracid (e.g., peracetic acid) or other... 

The following cycloaliphatic compounds are suitable as flame retardants in polyolefins hexabromo-cyclododecane and bromine-containing Diels-Alder reaction products based on hexachloro-... 

Polyfunctional aliphatic epoxy resins are generally cycloaliphatic in nature, derived from the corresponding cyclic polyolefins, for instance, (3,4-epoxycyclohexyl)methyl-3,4-epoxycyclohexanecarboxylate (3) from 3-cyclohexenylmethyl-3-cyclohexenecarJboxylate. Aliphatic epoxy resins are much more reactive toward electrophilic (acidic) curatives than are the aromatic resins, but much less reactive toward the more common nucleophilic (basic) curatives. In addition, aliphatic resins give cured products which are more brittle than those obtained from the aromatic resins. 

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