Dover Chemical Corporation

Other

Michael Jakupca

Jacob M Lance

Donald R Stevenson

John Regula

Mark E Harr

Don R Stevenson

Jacob Weingart

Thomas Jennings

Nina Bersaglini

Duong N Nguyen

Ben Rohr

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 method having the step of using a compound as an additive for: gear oil, grease, engine oil, combustion-engine lubricant, automatic transmission fluid, two-cycle engine lubricant, marine-engine lubricant, or anti-wear agent, the compound having the structure: wherein each R is an independently selected alkylphenol-free moiety that is a Calkyl, Ccycloalkyl, Cmethoxy alkyl glycol ether, Calkyl glycol ether, or Y&#x2014;OH moiety; wherein each Y is an independently selected alkylphenol-free moiety that is a Calkylene, Ccycloalkylene, Calkylene glycol ether, or Calkylene lactone moiety; wherein each m is an independently selected integer ranging from 1 to 100; and wherein x is an integer ranging from 1 to 1000.

Polymeric poly-phosphorus additives for: gear oil, grease, engine-oil, combustion-engine lubricant, automatic transmission fluid, anti-wear agents, two-cycle engine lubricant, or marine-engine lubricant

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 composition having polyvinylchloride; and a chlorinated ester having the chemical structure: 

Chlorinated ester polyvinyl-chloride secondary plasticizer and related methods

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

A process is described which reduces the amount of bloom and/or plate-out of phosphite antioxidants during polymer processing by the addition of at least one polyethylene glycol (or blends thereof) or polycaprolactones (or blends thereof) having an average molecular weight of approximately 1,000 to 20,000, most preferably between 4,000 to 10,000.

Method for reducing plate-out of solid phosphites in polymers

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) 

Mixed alkyl-alkylaryl-phenyl phosphite polymer additive

Various phenol-free phosphites for use in PVC as an alternative to the conventional phenol-containing products phenyl diisodecyl phosphite and diphenyl isodecyl phosphite were tested. These phosphites utilize para-cumyl phenol-based derivatives in order to provide a phenol free derivative of the above mentioned conventional phosphites.

Phenol-free phosphites

The invention relates to liquid polymer additive compositions comprising blends of phosphite esters selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites with from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.

Phosphite ester additive compositions

The invention relates to a liquid polymer additive composition comprising at least one phosphite ester selected from the group consisting of aryl phosphites, alkyl phosphites, aryl/alkyl phosphites, bisphenol-A phosphites, dialkylene glycol phosphites and polydialkylene glycol phosphites, pentaerythritol phosphites, p-cumyl phenol phosphites and blends thereof and approximately from 50 to 800 ppm inclusive of zinc per 100 parts resin. The stabilizer is used as either a complete or a partial replacement of toxic-metal containing antioxidant stabilizer additives.

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Canton, OH, United States of America

Michael Jakupca