公开(公告)号：US11696533B2

公开(公告)日：2023-07-11

申请号：US16332986

申请日：2017-09-05

Applicant: BASF SE

Inventor： Rolf Minkwitz ,  Frank Reil ,  Martina Schoemer ,  Johannes Klaus Sprafke

IPC: C08G69/14 ,  A01G9/14 ,  A01G13/02 ,  B32B27/08 ,  B32B27/34 ,  C08G69/34 ,  C08G69/36 ,  C08L77/08

CPC classification number: A01G9/1438 ,  A01G13/0275 ,  B32B27/08 ,  B32B27/34 ,  C08G69/14 ,  C08G69/34 ,  C08G69/36 ,  C08L77/08 ,  Y02A40/25

Abstract: The present invention relates to an agricultural film (AF) comprising at least one copolyamide, wherein the copolyamide has been prepared by polymerizing at least one lactam and a monomer mixture (M). The present invention further relates to a process for producing the agricultural film (AF) and to the use of the agricultural film (AF) as mulch film, as silage film, as greenhouse film or as silo film.

公开(公告)号：US11629226B2

公开(公告)日：2023-04-18

申请号：US16980241

申请日：2019-03-06

Applicant: BASF SE

Inventor： Eric S Noon ,  Joao Costa ,  Patrick Stephen Gale ,  Michael Daniel Doyle ,  Rolf Minkwitz

IPC: C08G69/36 ,  B32B7/12 ,  B32B15/088 ,  B32B15/09 ,  B32B15/20 ,  B32B27/32 ,  B32B27/34 ,  B65D65/40 ,  C08K3/08 ,  C09D177/08

Abstract: A laminated multilayer polymer containing film (P) comprises at least one layer comprising at least one copolyamide wherein the copolyamide is prepared by polymerizing the following components: (A) 15% to 84% by weight of at least one lactam, (B) 16% to 85% by weight of a monomer mixture (M) comprising the following components: (B1) at least one C32-C40 dimer acid and (B2) at least one C4-C12 diamine, where the percentages by weight of components (A) and (B) are each based on the sum total of the percentages by weight of components (A) and (B) and wherein the laminated multilayer polymer containing film (P) comprises at least one further layer, where the at least one further layer is selected from the group consisting of (i) at least one further polymer (FP) selected from the group consisting of polyolefins, poly(ethylene-vinyl alcohols), poly(ethylene-vinyl acetates), polyethylene terephthalates, polyvinylidene chlorides, maleic anhydride-grafted polyolefins, polyesters and ionomers and (ii) aluminum metal and/or tin metal.

公开(公告)号：US11559973B2

公开(公告)日：2023-01-24

申请号：US16075388

申请日：2017-01-31

Applicant: BASF SE

Inventor： Johannes Klaus Sprafke ,  Rolf Minkwitz ,  Walter Goetz

IPC: B32B27/34 ,  C08L77/06 ,  B32B27/30 ,  C08L77/02 ,  B32B27/32 ,  B32B27/36 ,  B32B27/08 ,  C08G69/26

Abstract: The present invention relates to a polymer film (P) containing a polyamide composition (PC) that comprises an amorphous polyamide (A) and a semicrystalline polyamide (B) and to a method for producing the polymer film (P). The present invention further relates to a method for packaging food products with the polymer film (P).

公开(公告)号：US11149124B2

公开(公告)日：2021-10-19

申请号：US16332255

申请日：2017-09-05

Applicant: BASF SE

Inventor： Rolf Minkwitz ,  Walter Goetz ,  Frank Reil ,  Florian Richter

IPC: C08J5/18 ,  B29C48/00 ,  B29C48/08 ,  B65D65/02 ,  C08G69/14 ,  C08G69/34 ,  C08G69/36

Abstract: The present invention relates to a polymer film (P), comprising at least one copolyamide, wherein the copolyamide has been prepared by polymerizing at least one lactam (A) and a monomer mixture (M). The present invention further relates to a process for producing the polymer film (P) and to the use of the polymer film (P) as packaging film.

公开(公告)号：US12030991B2

公开(公告)日：2024-07-09

申请号：US16331415

申请日：2017-09-05

Applicant: BASF SE

Inventor： Rolf Minkwitz ,  Andreas Thomas Haedler

IPC: C08G69/26 ,  B29C48/08 ,  B32B27/08 ,  B32B27/34 ,  C08G69/14 ,  C08G69/28 ,  C08G69/34 ,  C08G69/36 ,  C08J5/18 ,  C08L77/06 ,  B29C48/00 ,  B29K77/00

CPC classification number: C08G69/265 ,  B32B27/08 ,  B32B27/34 ,  C08G69/14 ,  C08G69/26 ,  C08G69/28 ,  C08G69/34 ,  C08G69/36 ,  C08J5/18 ,  B29C48/022 ,  B29C48/08 ,  B29K2077/00 ,  C08J2377/06

Abstract: The present invention relates to a polymer film (P) contacting at least one copolyamide. The copolyamide is prepared by polymerizing a first monomer mixture (M1), containing at least one C4-C12 dicarboxylic acid and at least one C4-C12 diamine, and a second monomer mixture (M2) containing at least one C32-C40 dimer acid and at least one C4-C12 diamine. The present invention further relates to a process for producing the polymer film (P) and to the use of the polymer film (P) for high-temperature applications.

公开(公告)号：US11351716B2

公开(公告)日：2022-06-07

申请号：US16342736

申请日：2017-10-24

Applicant: BASF SE

Inventor： Rolf Minkwitz ,  Silke Biedasek ,  Rony Knierim ,  Frank Herboth

IPC: B29C55/28 ,  B29C48/88 ,  B29C55/12 ,  B29C55/26 ,  B29C61/08 ,  B29C49/00 ,  B29K77/00 ,  B29L7/00 ,  B29L9/00 ,  B29L23/00 ,  B29L31/00

Abstract: The present invention relates to a process for producing a polymer film (P) comprising a polyamide composition (PC) by extruding the polyamide composition (PC) through an annular die and then stretching the tube thus obtained by blowing in air. The present invention further relates to the polymer film (P) obtainable by the process of the invention and to a process for packaging foodstuffs with the polymer film (P).