Pentaerythritol esters

Rosin ester resins are used extensively in pressure-sensitive adhesives as tackifiers. The adhesive is formulated by blending the resin with a polymer in solution or as aqueous emulsions. Typical compositions may contain about 50% resin. The glycerol or pentaerythritol esters of stabilized rosins are often used because they are stable on aging. 

The pentaerythritol ester of dodecylthiopropionic acid [1462-62-8], O22H25SOH2OH2OOOH, is marketed for the same purpose. 

Rosins and rosin derivatives. The resins more commonly used in rubber base adhesives are rosin esters, particularly glycerol and pentaerythritol esters, as well as rosins modified by disproportionation and hydrogenation. The glycerol ester of hydrogenated rosin has been reported to be an excellent tackifier for polychloroprene adhesives (see pp. 344-357 in [17]). 

Initial polymer hydrolysis products are the diol or mixture of diols used in the reaction with the diketene acetal, and pentaerythritol dipropionate, or diacetate if 3,9-bis(methylene-2,4,8,10-tetraoxaspiro-[5,5Jundecane) was used. These pentaerythritol esters hydrolyze at a slower rate to pentaerythritol and the corresponding aliphatic acid (13). 

Pentaerythritol acrylic esters, 2 54 Pentaerythritol ester of rosin, 22 43 Pentaerythritol phosphates, 2 49 11 492... 

Pentaerythritol Ester As with glycerol esters, the esters are produced by esterification of pentaerythritol with the desired fatty acids. For example, under defined reaction conditions and use of stearic acid in defined concentration, pentaerythritol distearate has been recently developed as an off-white wax with very weak odor (Cutina PES). This type of product is offered as co-emulsifier and consistency factor for cosmetic products with high sensorial elegance and can be applied in various formulations (Fig. 4.17). 

Treatment of moderate to severe atopic dermatitis Treatment of plaque psoriasis Calcipotriene Dovonex White petrolatum, propylene glycol, fatty alcohol citrate fatty acid pentaerythritol ester, beeswax... 

The problem of producing asymmetric pentaerythritol tetranitrate esters of nitric acid, i.e. mixed pentaerythritol esters and pentaerythritol ether esters, is tackled from time to time in investigations which have the dual aims ... 

Patents covering a method of producing mixed pentaerythritol esters were published in 1936 by Westffilisch-Anhaltische Sprengstoff A.G. [50]. These substances,... 

Mixed pentaerythritol esters have also been described [50] that contain in their molecule hydroxyl groups substituted by organic acids, which possess nitro groups either in ester form or as C-nitro compounds joined with the acid, alongside simple nitrate ester groups. 

For a long time the only practicable method was the nitration of an organic acid pentaerythritol ester followed by removal of the acyl. 

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). 

Pentaerythritol Ester of Partially Hydrogenated Wood Rosin... 

Pentaerythritol Ester of Partially Hydrogenated Wood Rosin occurs as a hard, amber-colored resin (color K or paler as determined by ASTM Designation D 509). It is soluble in acetone, but insoluble in water. 

Hydrogenated Wood Rosin 789 Pentaerythritol Ester of Wood... 

Infrared Spectra / Pentaerythritol Ester of Wood Rosin / 789... 

Journal of Applied Polymer Science 19, No.11, 14th March 2001, p.2029-37 SYNERGETIC EFFECT OF DIMERIZED PENTAERYTHRITOL ESTERS WITH SYNERGETIC METAL SOAP ON THE STABILIZATION OF POLY(VINYL CHLORIDE) Ikeda H Goto H Higaki Y Sunami M NakanO K Nakamura Y Iida T... 

An investigation was carried out to determine the synergetic effect of dimerised pentaerythritol esters, used as novel costabilisers with metal soap, a mixture of zinc and calcium stearates, as stabilisers for polyvinyl chloride to control undesirable discolouration when heated. 17 refs. JAPAN... 

PENTAERYTHRITOL ESTER of PARTIALLY HYDROGENATED WOOD ROSIN... 

PENTAERYTHRITE TETRANITRATE, with not less than 7% wax (DOT) see PBC250 PENTAERYTHRITOL see PBB750 PENTAERYTHRITOL ESTER of PARTIALLY HYDROGENATED WOOD ROSIN see PBB800 PENTAERYTHRITOL TETRANITRATE see PBC250 PENTAERYTHRITOL TETRANITRATE, diluted see PBC250... 

Derivation Derived from pentaerythritol esters of saturated fatty acids. 

Penglo 65 [Reichhold]. TM for a pale maleic modified pentaerythritol ester of a special tall oil in mineral spirits. 

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