公开(公告)号：US20200048435A1

公开(公告)日：2020-02-13

申请号：US16388586

申请日：2019-04-18

Applicant: International Paper Company

Inventor： Robert T. Hamilton ,  Harshadkumar M. Shah ,  Jeffrey J. Cernohous ,  Neil R. Granlund ,  David E. Fish

IPC: C08L1/10 ,  C08L23/06 ,  C08L23/12 ,  C08L97/02 ,  C08L1/12 ,  C08L55/02 ,  C08L67/04 ,  C08L53/00 ,  C08L67/02 ,  C08L69/00 ,  C08L23/02 ,  C08J5/04

Abstract: A composition comprising 10 to 50 weight % wood pulp fiber and 45 to 85 wt % thermoplastic polymer wherein the composition has a brightness of at least 20 as measured by the Brightness Test. The wood pulp fiber can be bleached chemical wood pulp fiber. The brightness may be at least 30 as measured by the Brightness Test.

公开(公告)号：US20190084185A1

公开(公告)日：2019-03-21

申请号：US16192415

申请日：2018-11-15

Applicant: International Paper Company

Inventor： Robert T. Hamilton ,  Harshadkumar M. Shah ,  David E. Fish ,  Neil R. Granlund ,  Jeffrey J. Cernohous

IPC: B29B9/06 ,  B29C47/36 ,  B29B9/14 ,  B29C47/00 ,  B29B7/92 ,  B29C47/38 ,  B29B7/48 ,  B29B7/60

Abstract: A composition including 6 to 50 weight percent wood pulp fiber and 45 to 93.45 weight percent thermoplastic polymer. In some embodiments, the average dispersion of the wood pulp fibers within the thermoplastic polymer is equal to or greater than 90% as determined by the Dispersion Test. In some embodiments, the dilution level for detection in a bag at 40° C. is equal to or less than 450 as determined by ASTM E679. In some embodiments, the composition further includes 0.5 to 5 weight percent of an additive, such as a compatibilizer, a coupling agent, an anti-oxidant, and/or a lubricant. In some embodiments, the wood pulp fiber is bleached chemical wood pulp fiber.

公开(公告)号：US20230331968A1

公开(公告)日：2023-10-19

申请号：US18057512

申请日：2022-11-21

Applicant: INTERNATIONAL PAPER COMPANY

Inventor： Robert T. Hamilton ,  Harshadkumar M. Shah ,  Jeffrey J. Cernohous ,  Neil R. Granlund ,  David E. Fish

IPC: C08L53/00 ,  C08L55/02 ,  C08L23/12 ,  C08J5/04 ,  C08L97/02

CPC classification number: C08L23/12 ,  C08J5/045 ,  C08L53/00 ,  C08L55/02 ,  C08L97/02 ,  C08L2205/16

Abstract: A composition comprising 10 to 50 wt% wood pulp fiber and 45 to 85 wt% thermoplastic polymer wherein the dilution level for detection in a bag at 40° C. is equal to or less than 450 as determined by ASTM E679.

公开(公告)号：US20200048444A1

公开(公告)日：2020-02-13

申请号：US16388615

申请日：2019-04-18

Applicant: International Paper Company

Inventor： Robert T. Hamilton ,  Harshadkumar M. Shah ,  Jeffrey J. Cernohous ,  Neil R. Granlund ,  David E. Fish

IPC: C08L23/12 ,  C08L97/02 ,  C08L55/02 ,  C08L53/00 ,  C08J5/04

Abstract: A composition comprising 10 to 50 wt % wood pulp fiber and 45 to 85 wt % thermoplastic polymer wherein the dilution level for detection in a bag at 40° C. is equal to or less than 450 as determined by ASTM E679.

公开(公告)号：US20180043578A1

公开(公告)日：2018-02-15

申请号：US15470567

申请日：2017-03-27

Applicant: International Paper Company

Inventor： Jeffrey J. Cernohous ,  Jorge Cortes

IPC: B29B9/06 ,  B29B7/92 ,  B29B7/60 ,  B29C47/36 ,  B29C47/38 ,  B29B9/14 ,  B29B7/48

CPC classification number: B29B9/065 ,  B29B7/487 ,  B29B7/60 ,  B29B7/92 ,  B29B9/08 ,  B29B9/14 ,  B29C48/0022 ,  B29C48/022 ,  B29C48/04 ,  B29C48/385 ,  B29C48/387 ,  B29C48/395

Abstract: The method of making a pellet comprising wood pulp fiber and thermoplastic polymer, comprising extruding an extrudate comprising 10 to 50 weight % wood pulp fiber and 45 to 85 weight % thermoplastic polymer through a die, cutting a pellet from the extrudate, removing the pellet from the extrudate with water having a temperature less than the extrudate, filtering the pellet from the water. In one embodiment the wood pulp fiber in the pellet has a moisture content of 1% or less. In one embodiment the wood fiber does not swell.

公开(公告)号：US09604388B2

公开(公告)日：2017-03-28

申请号：US13629231

申请日：2012-09-27

Applicant: International Paper Company

Inventor： Jeffrey J. Cernohous ,  Jorge Cortes

IPC: B29B9/06 ,  B29C47/36 ,  B29C47/38 ,  B29B7/92 ,  B29B9/14 ,  B29B7/48 ,  B29B7/60 ,  B29C47/00

CPC classification number: B29B9/065 ,  B29B7/487 ,  B29B7/60 ,  B29B7/92 ,  B29B9/14 ,  B29C47/0004 ,  B29C47/0011 ,  B29C47/0066 ,  B29C47/366 ,  B29C47/367 ,  B29C47/38

Abstract: The method of making a pellet comprising wood pulp fiber and thermoplastic polymer, comprising extruding an extrudate comprising 10 to 50 weight % wood pulp fiber and 45 to 85 weight % thermoplastic polymer through a die, cutting a pellet from the extrudate, removing the pellet from the extrudate with water having a temperature less than the extrudate, filtering the pellet from the water. In one embodiment the wood pulp fiber in the pellet has a moisture content of 1% or less. In one embodiment the wood fiber does not swell.