Biodegradable polyester components

Abstract

------17 / 10 / 2568------(OCR) OCR 10KL This invention involves a biodegradable polyester composition consisting of polyester, starch, copolymer, additive, and filler, where the polyester is composed of aliphatic and aliphatic-aromatic polyesters. This polyester composition is biodegradable and possesses good elongation properties, making it suitable for forming into various films and thin sheets, such as mulch films, bags, packaging films, gloves, etc.

Claims

------17 / 10 / 2568------(OCR) OCR 10KL1. Biodegradable polyester composition consisting of: - Polyester in the range of 58-90 percent by weight of the total composition - Thermoplastic starch in the range of 5-35 percent by weight of the total composition - Copolymer in the range of 0.1-1 percent by weight of the total composition and - Additives and fillers in the range of 0.4-11 percent by weight of the total composition. Specifically, the polyester contains polylactic acid in the range of 13-20 percent by weight of the total composition and polybutylene adipate terephthalate in the range of 45-70 percent by weight of the total composition.

2. Biodegradable polyester composition. Under claim 1, the copolymer contains an epoxy group and is based on styrene, acrylate, or methacrylate.3.

1. Biodegradable polyester composition pursuant to claim paragraph 2 where the copolymer is glycidyl methacrylate or vinyl acetate.

2. Biodegradable polyester composition pursuant to claim paragraph 1 where the additives are selectable from the group of slip agents, anti-blocking agents, anti-static agents, anti-microbial agents, pigments or mixtures thereof.

3. Biodegradable polyester composition pursuant to claim paragraph 4 where the slip agent is selectable from the group of erucamide, oleamide, glyceryl monostearate or mixtures thereof.

4. Biodegradable polyester composition pursuant to claim paragraph 4 where the anti-blocking agent is silicon dioxide. 5.Biodegradable polyester composition, pursuant to claim 1, whereby the filler is an inorganic filler of choice from the group of calcium carbonate, talcum, clay, or a mixture thereof. ------------ ------22 / 05 / 2568------(OCR) OCR 10KL1. Biodegradable polyester composition consisting of: - Polyester in the range of 58-90 percent by weight of the total composition; - Thermoplastic starch in the range of 5-35 percent by weight of the total composition; - Copolymer in the range of 0.1-1 percent by weight of the total composition; and - Additives and fillers in the range of 0.4-11 percent by weight of the total composition. Specifically, the polyester contains polylactic acid in the range of 5-20 percent by weight of the total composition and polybutylene adipate terephthalate in the range of 40-70 percent by weight of the total composition.

2. A composition pursuant to claim 1 where the copolymer contains an epoxy group and is based on styrene, acrylate, or methacrylate.3.

1. The composition under Reputation 2 where the copolymer is glycidyl methacrylate or vinyl acetate.

2. The composition under Reputation 1 where the filler is selectable from the group containing a slip agent, an anti-blocking agent, an anti-static agent, an anti-microbial agent, a pigment, or a mixture of such substances.

3. The composition under Reputation 4 where the slip agent is selectable from the group containing erucamide, oleamide, glyceryl monostearate, or a mixture of such substances.

4. The composition under Reputation 4 where the anti-blocking agent is silicon dioxide.

5. The composition under Reputation 1 where the filler is... Selected inorganic fillers include calcium carbonate, talcum, clay, or mixtures of these. ------------ 1. Biodegradable polyester composition. Consisting of: - Polyester in the range of 45-90 percent by weight of the total composition. - Starch in the range of 5-55 percent by weight of the total components. - Copolymer in the amount of 0.1-1 percent by the total weight of the components. and - Additives and fillers in the range of 0.4-11 percent by weight. Combination of elements It is characterized by the fact that polyester is composed of aliphatic polyesters. Polyester) in the amount of 5-20 percent by weight of the total composition, and polyester. Aliphatic-aromatic polyester types, with content ranging from 40-70 percent. By the total weight of the components.

2. The element under claim 1 in which an aliphatic polyester is selectable from a group consisting of: Polylactic acid (PLA), polybutylene succinate (PBS), Polycaprolactone (PCL), polyhydroxy alkanoates ( PHAs) or mixtures of such substances.

3. The element under claim 1, whereby the aliphatic-aromatic polyester is polybutylene. Polybutylene adipate terephthalate (PBAT) 4. The composition under Claim 1, from which the starch can be selected from a group of thermoplastic components. Starch (thermoplastic starch), modified starch, plasticized starch. Starch) or a mixture of such substances.

5. A composition pursuant to claim 1 where the copolymer contains epoxy groups and is styrene-based. (styrene), acrylate, or methacrylate 6. The composition pursuant to claim paragraph 5, whereby the copolymer is glycidyl methacrylate. Or vinyl acetate.

7. Components under Claim 1 where the additives are selectable from a group containing lubricants. (slip agent), anti-adhesion agent, (anti-blocking agent), anti-static agent 8. Agent, antimicrobial agent, pigment, or mixtures of such substances. The composition pursuant to claim paragraph 7, whereby the lubricant is selectable from the group containing erucamide. (erucamide), oleamide, glyceryl monostearate, or A mixture of the above substances.

9. The composition under claim 7 where the anti-adhesion agent is silicon dioxide.

10. The element under Claim 1 where the filler is an inorganic filler of choice from a group consisting of: Calcium carbonate, talcum, clay, or a mixture of these materials. of the said substance