公开(公告)号：US11787938B2

公开(公告)日：2023-10-17

申请号：US17837291

申请日：2022-06-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Carolin Fleischmann ,  Rachael Donovan ,  Shannon Reuben Woodruff ,  Yi Feng

IPC: B29C64/165 ,  C08L77/04 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D11/30 ,  B29K77/00

CPC classification number: C08L77/04 ,  B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/102 ,  C09D11/30 ,  B29K2077/00

Abstract: Compositions including polyamides and methods of employing compositions including polyamides are described herein. For instance, composition for three-dimensional (3D) printing can include a polymer build material comprising of at least two polyamides including a first polyamide and a second polyamide, where the first polyamide is present in an amount ranging of from about 95% to about 99% of a total weight of the polymer build material and where the second polyamide is present in an amount ranging of from about 1% to about 5% of the total weight of the polymer build material.

公开(公告)号：US11679553B2

公开(公告)日：2023-06-20

申请号：US17859922

申请日：2022-07-07

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Carolin Fleischmann ,  Hector Lebron ,  Yi Feng ,  Jesiska Tandy ,  Alay Yemane ,  Ali Emamjomeh

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/322 ,  C09D11/324 ,  B33Y70/10

CPC classification number: B29C64/165 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y70/10 ,  C09D11/322 ,  C09D11/324

Abstract: The present disclosure relates to a composition for printing a three-dimensional object. The composition comprises composite particles comprising a thermoplastic polymer and a colour-masking pigment. The colour-masking pigment is encapsulated by the thermoplastic polymer and is present in an amount of from about 1.5 to less than about 6 wt % of the total weight of the composite particles.

公开(公告)号：US20220298369A1

公开(公告)日：2022-09-22

申请号：US17837291

申请日：2022-06-10

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Carolin Fleischmann ,  Rachael Donovan ,  Shannon Reuben Woodruff ,  Yi Feng

IPC: C09D11/102 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/165 ,  C09D11/30

Abstract: Compositions including polyamides and methods of employing compositions including polyamides are described herein. For instance, composition for three-dimensional (3D) printing can include a polymer build material comprising of at least two polyamides including a first polyamide and a second polyamide, where the first polyamide is present in an amount ranging of from about 95% to about 99% of a total weight of the polymer build material and where the second polyamide is present in an amount ranging of from about 1% to about 5% of the total weight of the polymer build material.

公开(公告)号：US20210402697A1

公开(公告)日：2021-12-30

申请号：US16605224

申请日：2018-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Erica Fung ,  Jesiska Tandy ,  Yi Feng ,  Alay Yemane ,  Allen Jin

IPC: B29C64/357 ,  B29C64/153 ,  B29C64/393 ,  B33Y10/00 ,  B33Y50/02

Abstract: In some examples, a method measures values of a property of a build material aged in a heated environment, and computes, using a predictive model for each of a plurality of recyclability ratios, output values of the property over a plurality of generations of the build material, each recyclability ratio of the plurality of recyclability ratios representing relative amounts of fresh build material and used build material. The method further includes presenting the output values of the property over the plurality of generations to enable selection of a recyclability ratio to use in building a part using the build material.

公开(公告)号：US20190054688A1

公开(公告)日：2019-02-21

申请号：US16073267

申请日：2016-05-13

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Yi Feng ,  Erica Montei Fung ,  Glenn Thomas Haddick

IPC: B29C64/165 ,  B32B27/34 ,  B32B27/08 ,  B29C64/20 ,  B29C64/264 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y80/00

Abstract: The present disclosure is drawn to material sets for 3-dimensional printing, 3-dimensional printing systems, and 3-dimensional printed parts. A material set can include a polyamide polymer powder having an average particle size from 20 μm to 120 μm and a fusing agent. The polyamide-12 powder can include greater than 80 meq/g carboxylic end groups and less than 40 meq/g amino end groups. The fusing agent can include an energy absorber capable of absorbing electromagnetic radiation to produce heat.

公开(公告)号：US20190039295A1

公开(公告)日：2019-02-07

申请号：US16073289

申请日：2016-05-13

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Yi Feng ,  Erica Montei Fung

IPC: B29C64/165 ,  C08K3/04 ,  C08K3/08 ,  C08K7/20

Abstract: The present disclosure is drawn to material sets for 3-dimensional printing, 3-dimensional printing systems, and 3-dimensional printed parts. A material set can include a powder bed material of composite particles including glass beads coated with polyamide-12 polymer. The composite particles can have an average particle size from 20 μm to 200 μm, and the polyamide-12 polymer can include greater than 80 meq/g carboxylic end groups and less than 40 meq/g amino end groups. The fusing agent can include an energy absorber capable of absorbing electromagnetic radiation to produce heat.

公开(公告)号：US20180016458A1

公开(公告)日：2018-01-18

申请号：US15690004

申请日：2017-08-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Yi Feng ,  Yubai Bi ,  Daniel Vincent Keane ,  Ali Emamjomeh

IPC: C09D11/54 ,  C09D11/36 ,  C09D11/326 ,  C09D11/102 ,  C09D11/101 ,  B41M7/00 ,  B41M5/00 ,  C09D11/40 ,  B41J11/00

CPC classification number: C09D11/54 ,  B41J11/0015 ,  B41M5/0017 ,  B41M7/0081 ,  C09D11/101 ,  C09D11/102 ,  C09D11/326 ,  C09D11/36 ,  C09D11/40

Abstract: A fixable, UV curable ink includes an aqueous ink vehicle including water and a co-solvent, a pigment, and a dispersant. A polyurethane polymer dispersion is suspended as droplets within the aqueous ink vehicle. The polyurethane polymer dispersion includes a polyurethane polymer selected from the group consisting of a polyether-based polyurethane, a polyester-based polyurethane, a polycarbonate-based polyurethane, and mixtures thereof. The polyurethane polymer has i) an acid number ranging from 0 mg/g to less than 20 mg/g and ii) a glass transition temperature of less than 0° C. A water soluble or water dispersible photoinitiator is present in the fixable, UV curable ink. A base may be included in an amount sufficient to adjust a pH of the UV curable ink so that it ranges from 7.5 to 9.5. An additive may be included and selected from the group consisting of a biocide, a non-ionic surfactant, an anti-kogation agent, a buffer, and combinations thereof.

公开(公告)号：US20160304734A1

公开(公告)日：2016-10-20

申请号：US15103297

申请日：2014-01-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Yi Feng ,  Yubai Bi ,  Daniel Vincent Keane ,  Ali Emamjomeh

IPC: C09D11/54 ,  B41J11/00 ,  C09D11/102 ,  C09D11/101 ,  C09D11/40 ,  C09D11/36

CPC classification number: C09D11/54 ,  B41J11/0015 ,  B41M5/0017 ,  B41M7/0081 ,  C09D11/101 ,  C09D11/102 ,  C09D11/326 ,  C09D11/36 ,  C09D11/40

Abstract: An ink set includes a pre-treatment fixing fluid including at least two metal salts and a fixable, ultraviolet (UV) curable ink. The UV curable ink includes an aqueous ink vehicle, a pigment dispersed in the aqueous ink vehicle, and a dispersant. A polyurethane polymer dispersion is suspended as droplets within the aqueous ink vehicle. The polyurethane polymer dispersion includes a polyurethane polymer selected from the group consisting of a polyether-based polyurethane, a polyester-based poly-urethane, a polycarbonate-based polyurethane, and mixtures thereof. The polyurethane polymer has i) an acid number ranging from 0 mg/g to less than 20 mg/g and ii) a glass transition temperature of less than 0 C. A water soluble or water dispersible photoinitiator is present in the pre-treatment fixing fluid or in the fixable, UV curable ink.

Abstract translation: 油墨组包括包含至少两种金属盐和可固定的紫外线（UV）可固化油墨的预处理固定流体。 UV固化油墨包括水性油墨载体，分散在水性油墨载体中的颜料和分散剂。 聚氨酯聚合物分散体作为液滴悬浮在水性载体中。 所述聚氨酯聚合物分散体包括选自聚醚类聚氨酯，聚酯类聚氨酯，聚碳酸酯类聚氨酯及其混合物的聚氨酯聚合物。 聚氨酯聚合物具有i）0mg / g至小于20mg / g的酸值和ii）小于0℃的玻璃化转变温度。在预处理固定中存在水溶性或水分散性光引发剂 流体或可固定的UV固化油墨。

公开(公告)号：US12049041B2

公开(公告)日：2024-07-30

申请号：US18349161

申请日：2023-07-09

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00 ,  B29K67/00 ,  B29K77/00 ,  B33Y10/00

CPC classification number: B29C64/165 ,  B33Y70/00 ,  B29K2067/04 ,  B29K2077/00 ,  B33Y10/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.

公开(公告)号：US20230347587A1

公开(公告)日：2023-11-02

申请号：US18349161

申请日：2023-07-09

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Shannon Reuben Woodruff ,  Ali Emamjomeh ,  Yi Feng ,  Erica Fung ,  Carolin Fleischmann ,  Geoffrey Schmid

IPC: B29C64/165 ,  B33Y70/00

CPC classification number: B29C64/165 ,  B33Y70/00 ,  B33Y10/00

Abstract: This disclosure relates to a material set including a build material for 3-D printing including particles of a polymer comprising polymer chains having at least one reactive group that is protected with a protecting group. The material set further includes an inkjet composition including a de-protecting agent for removal of the protecting group, and a liquid carrier.