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US 11,111,363 B2Granted
Articles formed with renewable and/or sustainable green plastic material and carbohydrate-based polymeric materials lending increased strength and/or biodegradability
AssigneeBiologiq, Inc.
InventorsBradford LaPray, Wenji Quan, Donald R. Allen
Life of this patent
Estimating the term…
Abstract
Described herein are strength characteristics and biodegradation of articles produced using one or more “green” sustainable polymers and one or more carbohydrate-based polymers. A compatibilizer can optionally be included in the article. In some cases, the article can include a film, a bag, a bottle, a cap or lid therefore, a sheet, a box or other container, a plate, a cup, utensils, or the like.
Claims37
An article comprising:
- at least one of biopolyethylene or biopolypropylene;
- and
- a starch-based polymeric material configured to provide the at least one of biopolyethylene or biopolypropylene with biodegradability, where the at least one of biopolyethylene or biopolypropylene itself is not otherwise substantially biodegradable;
- wherein the starch-based polymeric material is formed from a plasticizer and one or more starches comprising one or more of potato starch, corn starch or tapioca starch, the starch-based polymeric material has a crystallinity of less than about 20%, and does not re-form a crystalline structure, and has a water content of no more than about 2%, and
- wherein the starch-based polymeric material and at least one of biopolyethylene or biopolypropylene exhibit a substantial lack of sea-island features when blended together to form the article;
- wherein at least 25% of the biopolyethylene or biopolypropylene biodegrades within 5 years under ASTM D-5511.
3 more elements
An article comprising:
- biopolyethylene;
- and
- one or more starch-based polymeric materials configured to provide the biopolyethylene of the article with biodegradability, where the biopolyethylene is not otherwise substantially biodegradable;
- wherein the starch-based polymeric material is formed from a plasticizer and one or more starches comprising one or more of potato starch, corn starch or tapioca starch, the starch-based polymeric material has a crystallinity of less than about 20%, and does not re-form a crystalline structure, and has a water content of no more than about 2%;
- wherein the starch-based polymeric material and biopolyethylene exhibit a substantial lack of sea-island features when blended together to form the article;
- and
- wherein a strength of the article is at least about 5% greater than the article would have if made solely from the biopolyethylene, without the starch-based polymeric material.
4 more elements
An article comprising:
- PBAT;
- and
- a starch-based polymeric material configured to provide the PBAT with biodegradability under ASTM D-6691;
- wherein the starch-based polymeric material is formed from a starch and a plasticizer, has a crystallinity of less than about 20%, and does not re-form a crystalline structure, has a water content of no more than about 2%, and the starch-based polymeric material and the PBAT exhibit a substantial lack of sea-island features when blended together to form the article;
- and
- wherein at least 25% of the PBAT biodegrades within 5 years under ASTM D-6691.
3 more elements
An article comprising:
- at least one of biopolyethylene or biopolypropylene;
- a starch-based polymeric material configured to provide the at least one of biopolyethylene or biopolypropylene with biodegradability, where the at least one of biopolyethylene or biopolypropylene itself is not otherwise substantially biodegradable;
- and
- a compatibilizer, wherein the compatibilizer is present in an amount of no more than 8% by weight;
- wherein the starch-based polymeric material is formed from a starch and a plasticizer, has a crystallinity of less than about 20%, and does not re-form a crystalline structure, and has a water content of no more than about 2%;
- wherein the starch-based polymeric material and at least one of biopolyethylene or biopolypropylene exhibit a substantial lack of sea-island features when blended together to form the article;
- wherein at least 25% of the biopolyethylene or biopolypropylene biodegrades within 5 years under ASTM D-5511.
4 more elements
An article comprising:
- biopolyethylene;
- one or more starch-based polymeric materials configured to provide the biopolyethylene of the article with biodegradability, where the biopolyethylene is not otherwise substantially biodegradable;
- and
- a compatibilizer, wherein the compatibilizer is present in an amount of no more than 8% by weight;
- wherein the starch-based polymeric material is formed from a starch and a plasticizer, has a crystallinity of less than about 20%, and does not re-form a crystalline structure, and has a water content of no more than about 2%;
- wherein the starch-based polymeric material and biopolyethylene exhibit a substantial lack of sea-island features when blended together to form the article;
- wherein a strength of the article is at least about 5% greater than the article would have if made solely from the biopolyethylene, without the starch-based polymeric material.
4 more elements
Dependencies are inferred from the claim text.