Hydrophobic additive for use with fabric, fiber, and film
AssigneeTechmer Pm, LLC
InventorEbrahim Mor
Life of this patent
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Abstract
The present invention relates to a hydrophobic additive for use with fabric, fiber, and film. One aspect of the present invention comprises a master batch composition for use in preparing a non-woven fabric in order to increase the hydrophobicity of the non-woven fabric. In one embodiment, the master batch composition includes a polymer and a lipid ester. The lipid ester comprises from 10 wt. % to 40 wt. % of the master batch. The fabric, when including the master batch composition, has a contact angle ranging from 100° to 125° when measured according to test method ASTM D2578.
Claims32
A master batch for use in preparing a non-woven fabric in order to increase the hydrophobicity of the non-woven fabric, the master batch comprising:
- a carrier polymer selected from the group consisting of polyolefin, polyester, polylactic acid, poly-3-hydroxybutyrate, polyamide, and copolymers thereof;
- and
- a lipid ester comprising 10-40 wt. % of the master batch, wherein the lipid ester is a triglyceride ester having a number-averaged molecular weight ranging from 500 to 2000, and, wherein when a fabric is prepared with the master batch, the fabric has a contact angle ranging from 100° to 125° when measured according to test method ASTM D2578 and is hydrophobic, the master batch being in a form of a pellet having a hardness ranging from 20 to 100 Shore A when tested according to test method ASTM D2240.
A fiber for use in a non-woven fabric, the fiber comprising:
- a master batch comprising a carrier polymer and a lipid ester having a number-averaged molecular weight ranging from 500 to 2000, and comprising 10-40 wt. % of the master batch;
- and
- a matrix polymer comprising a polyethylene, a polypropylene, or a polypropylene copolymer;
- wherein, when used to make a fabric, the fabric is hydrophobic and has a contact angle ranging from 100-125° when measured according to test method ASTM D2578;
- and wherein the carrier polymer is selected from the group consisting of polyolefin, polyester, polylactic acid, poly-3-hydroxybutyrate, polyamide, and copolymers thereof.
A fiber comprising:
- a fiber made of a matrix polymer and a master batch, the master batch comprising a carrier polymer and a lipid ester having a number-averaged molecular weight ranging from 500 to 2000, and comprising 10-40 wt. % of the master batch, wherein the lipid ester is a triglyceride ester, wherein when a fabric is prepared with the master batch, the fabric is hydrophobic and has a contact angle ranging from 100° to 125° when measured according to test method ASTM D2578, wherein the carrier polymer is selected from the group consisting of polyolefin, polyester, polylactic acid, poly-3-hydroxybutyrate, polyamide, and copolymers thereof;
- and wherein the matrix polymer comprises a polyethylene, a polypropylene, or a polypropylene copolymer.
A film comprising:
- an additive comprising a master batch comprising a carrier polymer and a lipid ester comprising 10-40 wt. % of the master batch, and
- a matrix polymer, the film being hydrophobic and having a contact angle ranging from 100° to 125° when measured according to test method ASTM D2578,
- wherein the carrier polymer is selected from the group consisting of polyolefin, polyester, polylactic acid, poly-3-hydroxybutyrate, polyamide, and copolymers thereof;
- and wherein the matrix polymer comprises a polyethylene, a polypropylene, or a polypropylene copolymer.
A master batch for use in preparing a hydrophobic non-woven fabric in order to increase the hydrophobicity of the non-woven fabric, the master batch consisting essentially of:
- a hydrophobic carrier polymer;
- and
- a saturated glyceride ester having a number-averaged molecular weight ranging from 500 to 2000, wherein when a fabric is prepared with the master batch, the fabric has a contact angle ranging from 100° to 125° when measured according to test method ASTM D2578 and is hydrophobic.
A method for preparing a solid master batch usable to form a fiber, the method comprising:
- providing a first polymer including an amorphous region or a semi-crystalline region comprising a range of 1 wt. % to 100 wt. % of the first polymer;
- and
- blending a lipid ester with the first polymer and solidifying the materials to form the master batch, the lipid ester having a number-averaged molecular weight ranging from 500 to 2000, and comprising 10-95 wt. % of the master batch, wherein the master batch, which when shaped as a film, is hydrophobic and has a contact angle ranging from 100° to 125° when measured according to test method ASTM D2578.
Dependencies are inferred from the claim text.