Cottonseed oil based additive compositions for plastics molding and extrusion

• US 10,597,513 B2
• Filed: 02/01/2018
• Issued: 03/24/2020
• Est. Priority Date: 07/17/2013
• Status: Active Grant

• Current Assignee: Stephen B. Maguire
• Original Assignee: Stephen B. Maguire
• Inventors: Maguire, Stephen B.
• Primary Examiner(s): Yi, Stella K
• Application Number:
  US15/886,137
• Publication Number:
  US 20180155523A1
• Time in Patent Office: 782 Days
• CPC Class Codes: B29C 2948/92704 Temperature
• CPC Class Codes: B29C 45/0013 using fillers dispersed in the moulding material, e.g. metal particles
• CPC Class Codes: B29C 48/06 Rod-shaped
• CPC Class Codes: B29C 48/29 in liquid form
• CPC Class Codes: B29C 48/95 by adding lubricant to the moulding material
• CPC Class Codes: B29K 2105/0011 Biocides
• CPC Class Codes: B29K 2105/0032 Pigments, colouring agents or opacifiyng agents
• CPC Class Codes: C08J 2300/00 Characterised by the use of unspecified polymers
• CPC Class Codes: C08J 2300/22 Thermoplastic resins
• CPC Class Codes: C08J 2491/00 Characterised by the use of oils, fats or waxes; Derivatives thereof
• CPC Class Codes: C08J 3/2053 the additives only being premixed with a liquid phase
• CPC Class Codes: C08J 3/226 using a polymer as a carrier
• CPC Class Codes: C08K 5/0041 Optical brightening agents, organic pigments
• CPC Class Codes: C08K 5/01 Hydrocarbons C08K5/0091 takes precedence
• CPC Class Codes: C08K 5/09 Carboxylic acids; Metal salts thereof; Anhydrides thereof
• CPC Class Codes: C08K 5/103 with polyalcohols

Abstract

A method of fabricating plastic products having a preselected characteristic, comprising preparing a dispersion of at least one additive contributes the preselected characteristic in cottonseed oil; supplying a preselected plastic resin for the product to be fabricated to a process machine having a rotating screw; furnishing the dispersion to the process machine at a position adjacent to threaded portion of the rotating screw; and blending the dispersion and the resin by rotating the screw.

Claims

1. A method of molding or extruding plastic parts comprising the steps of:

a) providing a collection of additives, at least one of which is a solid;

b) providing a quantity of pure cottonseed oil;

c) creating a plurality of single additive dispersions each in a cottonseed oil carrier;

d) mixing selected ones of the single additive dispersions to create a blend;

e) milling the blend while the cottonseed oil is in a liquid phase; and

f) adding the blend to thermoplastic resin in the course of molding or extrusion.

2. A method of making a liquid additive blend for use in the course of molding or extruding plastic parts comprising the steps of:

a) providing a collection of additives, at least one of which is a solid;

b) providing a quantity of pure cottonseed oil;

c) creating a plurality of solid additive dispersions from the collected additives, each in a cottonseed oil carrier;

d) mixing selected ones of the solid additive dispersions with cottonseed oil to create a blend; and

e) milling the blend while the cottonseed oil is in a liquid phase.

3. The method of claim 2 further comprising adding at least one additive selected from the group comprising lubricants, blowing agents, light stabilizers, nucleating agents, antistatic agents and antioxidants, to the blend.

4. The method of claim 2 wherein the selected dispersions are blended into the cottonseed oil simultaneously.

6. The method of claim 2 wherein milling is performed using a roller mill.

7. The method of claim 2 wherein milling is performed using a sand mill.

5. A method of fabricating plastic products having preselected characteristics, comprising:

a) preparing a dispersion of additives, providing the preselected characteristics, in pure cottonseed oil;

b) supplying a preselected plastic resin for the product to be fabricated to a process machine having a rotating screw;

c) furnishing the dispersion to the process machine at a position adjacent to a threaded portion of the rotating screw while the cottonseed oil is in a liquid phase; and

d) blending the dispersion and the resin by rotating the screw while the cottonseed oil is in the liquid phase.

8. A method of fabricating plastic products having preselected characteristics, consisting of:

a. preparing a dispersion of additives, providing the preselected characteristics, in pure cottonseed oil;

b. supplying a preselected plastic resin for the product to be fabricated to a process machine having a rotating screw;

c. furnishing the dispersion to the process machine at a position adjacent to a threaded portion of the rotating screw while the cottonseed oil is in a liquid phase;

and d. blending the dispersion and the resin by rotating the screw while the cottonseed oil is in the liquid phase.

9. A method of making a liquid additive blend for use in the course of molding or extruding plastic parts consisting essentially of the steps of:

a. providing a collection of additives, at least one of which is a solid;

b. providing a quantity of pure cottonseed oil;

c. creating a plurality of solid additive dispersions from the collected additives, each in a cottonseed oil carrier;

d. mixing selected ones of the solid additive dispersions with cottonseed oil to create a blend; and

e. milling the blend while the cottonseed oil is in a liquid phase.

10. The method of claim 9 further comprising adding at least one additive selected from the group comprising lubricants, blowing agents, light stabilizers, nucleating agents, antistatic agents and antioxidants, to the blend.

11. The method of claim 9 wherein the selected dispersions are blended into the cottonseed oil simultaneously.