公开(公告)号：US11273627B2

公开(公告)日：2022-03-15

申请号：US16474126

申请日：2018-01-10

Applicant: BOSTIK, INC.

Inventor： Deepa Puthanparambil

IPC: B32B27/20 ,  B29C48/08 ,  B29C48/40 ,  B32B27/36

Abstract: A semicrystalline copolyester resin composition formed by twin screw extrusion of various ingredients includes copolyester resins, antiblock, slip and antifog additives. This semicrystalline copolyester resin can be extruded on to PET film or coextruded with PET resin to form clear PET films with antifog properties. These films with antifog properties are produced in a single step without the use of solvent and does not involve any secondary step for coating a separate antifog layer. This minimizes the cost and time required by a converter to make such clear antifog films. These films containing the heat seal copolyester resin can be heat sealed to clear APET trays. Contents within the trays, such as food, can be seen without fogging on the inside of the film that is used to seal the tray. The seals are strong and the peels are smooth giving a very good packaging performance.

公开(公告)号：US11806971B2

公开(公告)日：2023-11-07

申请号：US17665720

申请日：2022-02-07

Applicant: Bostik, Inc.

Inventor： Deepa Puthanparambil

IPC: B32B27/20 ,  B29C48/08 ,  B29C48/40 ,  B32B27/36 ,  B32B37/15 ,  B29C48/00 ,  B29C48/21 ,  B29C48/28 ,  B29D7/01 ,  B32B37/06 ,  B29K67/00 ,  B29K105/00

CPC classification number: B32B27/20 ,  B29C48/022 ,  B29C48/08 ,  B29C48/21 ,  B29C48/28 ,  B29C48/40 ,  B29D7/01 ,  B32B27/36 ,  B32B37/153 ,  B29K2067/00 ,  B29K2105/0005 ,  B29K2995/0026 ,  B32B37/06 ,  B32B2250/02 ,  B32B2255/10 ,  B32B2264/102 ,  B32B2307/744 ,  B32B2367/00 ,  B32B2377/00 ,  B32B2439/70

Abstract: A semicrystalline copolyester resin composition formed by twin screw extrusion of various ingredients includes copolyester resins, antiblock, slip and antifog additives. This semicrystalline copolyester resin can be extruded on to PET film or coextruded with PET resin to form clear PET films with antifog properties. These films with antifog properties are produced in a single step without the use of solvent and does not involve any secondary step for coating a separate antifog layer. This minimizes the cost and time required by a converter to make such clear antifog films. These films containing the heat seal copolyester resin can be heat sealed to clear APET trays. Contents within the trays, such as food, can be seen without fogging on the inside of the film that is used to seal the tray. The seals are strong and the peels are smooth giving a very good packaging performance.

公开(公告)号：US11661537B2

公开(公告)日：2023-05-30

申请号：US16562748

申请日：2019-09-06

Applicant: BOSTIK, INC.

Inventor： Monina D. Kanderski ,  Michael D. Vitrano ,  David P. Keuler ,  Deepa Puthanparambil ,  Jacqueline M. Lambert ,  Brian J. Morrow

IPC: C09J167/04 ,  B65D6/00 ,  C09J5/06 ,  C09J141/00 ,  C08K5/00 ,  C08K5/053 ,  C08K5/092 ,  C08K5/12

CPC classification number: C09J167/04 ,  B65D13/04 ,  C09J5/06 ,  C09J141/00 ,  C08K5/0016 ,  C08K5/053 ,  C08K5/092 ,  C08K5/12

Abstract: A hot melt adhesive comprises a polylactide homopolymer or copolymer, such as polylactic acid; sulfonated copolyester; and at least one plasticizer, and is compostable. The plasticizer may be a solid plasticizer, such as a benzoate, and a second plasticizer may also be used. The adhesive is suitable for use in a variety of applications, such as case and carton applications, use with burlap or other compostable substrates for tree bulbs or plant seeds, and use with other compostable films, and is especially appropriate for dual-walled paperboard beverage cups. The adhesive demonstrates good bond performance comparable to non-compostable adhesives over a range of temperatures, reflective of the temperatures of hot and cold beverages.