Dover Chemical Corporation

Other

Jacob M Lance

Michael Jakupca

Donald R Stevenson

John Regula

Nina Bersaglini

Ping Lue

Donald Stevenson

A composition having a polymer-film composition having a compound having the structure:

Polymer compositions having an improved printable surface and related methods

A composition having a polymer-film composition having a compound having the structure: wherein: each R is independently selected; each R is a Calkyl moiety, Calkenyl moiety, Ccycloalkyl moiety, Ccycloalkylene moiety, Calkyl glycol ether moiety, C-Clinear alkyl alcohol moiety, or Y&#x2014;OH moiety; each Y is a Calkylene moiety, Ccycloalkylene moiety, Calkylene glycol ether, or a Calkylene lactone; m is an integer ranging from 1 to 100; x is an integer ranging from 2 to 1,000; and the polymer-film composition having an oxidized polymer-film surface.

A composition having a polymer having a polymer matrix, a first stabilizer molecule within the polymer matrix, and a second stabilizer molecule within the polymer matrix, the first stabilizer molecule having the structure: wherein each R-Ris independently selected from the group consisting of Calkyl, Ccycloalkyl, Calkyl glycol ether, and Y&#x2014;OH; each Y is independently selected from the group consisting of Calkylene, Calkylene lactone, and Ccycloalkylene; m is an integer ranging from 1 to 100; and x is an integer ranging from 1 to 1,000; the second stabilizer molecule is a monophosphite having an aryl moiety; wherein the claimed composition does not include a hindered phenolic antioxidant, lactone stabilizer, or hydroxylamine stabilizer.

Stabilizer composition for polymer-composition melt processing and related methods

The invention pertains generally to a polymer composition comprising a certain secondary polymeric polyphosphite anti-oxidant, that can also act as a polymer processing aid alone or in combination with another polymer processing aid.

Use of a polymeric polyphosphite as a polymer processing aid

A copolymeric polyphosphite is described: wherein each Rthrough Rcan be the same or different and independently selected from the group consisting of Calkyl, Calkenyl, Ccycloalkyl, C-cycloalkenyl, Calkyl glycol ethers and A-OH and B&#x2014;OH are different end-capping groups and independently selected from the group consisting of Calkylene, Ccycloalkylene, Calkyl glycol ethers, Calkyl lactone, and &#x2014;R&#x2014;N(R)&#x2014;R&#x2014;; wherein Rand through Rare independently selected from the group Calkyl, Calkenyl, Ccycloalkyl, Ccycloalkylene and H; m and n are integers from 1 to 100 inclusive, with various provisos.

Copolymeric polyphosphite polymer stabilizers

A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain. Incorporation of the polymeric polyphosphite into synthetic polymers reduces the yellowness index of any polymer into which the polymeric polyphosphite additive has been added, as well as increased hydrolytic stability as well as increased resistance to migration in food packaging.

Cycloaliphatic polyphosphite

A polymeric polyphosphite and copolymeric polyphosphite is described which contains a cycloaliphatic moiety, preferably cyclohexane dimethanol, in the polyphosphite backbone chain.

Cycloaliphatic polyphosphite polymer stabilizers

An alkylphenol-free liquid polymeric phosphite is described of general Structure IV illustrated below wherein each R, R, Rand Rcan be the same or different and independently selected from the group consisting of Calkyl, Calkenyl, Ccycloalkyl, Ccycloalkylene, Cmethoxy alkyl glycol ethers, Calkyl glycol ethers, and or Y&#x2014;OH; Y is selected from the group consisting of Calkylene, Calkyl lactone, &#x2014;R&#x2014;N(R)&#x2014;R&#x2014;, wherein R, Rand Rare independently selected from the group previously defined for R, R, Rand R, now further including H; m is an integral value ranging from 2 to 100 inclusive; and x is an integral value ranging from 1 to 1,000. The alkylphenol-free liquid polymeric phosphite is useful in reducing phosphite migration within polymers.

Alkylphenol free-liquid polymeric phosphite polymer stabilizers

The present invention pertains to a process for the preparation of pentaerythritol diphosphites via a one-pot, direct esterification of phosphorus trichloride with pentaerithritol, and either an alkylphenol or an arylalkylphenol which functions both as a reactant and as a solvent, with a phase transfer catalyst such as a quaternary ammonium salt.

Phase transfer catalyst for synthesis of pentaerythritol diphosphites

A process to stabilize a polymer is described utilizing the step of adding a phosphite reaction product of a triphenyl phosphite or lower molecular weight trialkyl phosphite (e.g., trimethyl phosphite) or triaryl phosphite, with from approximately 1 to 2 moles of preferably a paracumyl phenol, and with from approximately 1 to 2 moles of at least Ccarbon alkyl or Calkenyl alcohol. In one embodiment of the invention, the phosphite reaction product is formula (I) 

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Dover, OH, United States of America

Jacob M Lance