公开(公告)号：US20190248948A1

公开(公告)日：2019-08-15

申请号：US16397373

申请日：2019-04-29

Applicant: PROPRIETECT L.P.

Inventor： JING ZHANG ,  Dorota Ulman

IPC: C08G18/08 ,  C08G18/76 ,  C08G18/20 ,  C08G18/48 ,  C08G18/18 ,  C08G18/66

CPC classification number: C08G18/14 ,  C08G18/1825 ,  C08G18/1833 ,  C08G18/2063 ,  C08G18/4883 ,  C08G18/6677 ,  C08G18/7621 ,  C08G18/7664 ,  C08G18/7671 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083

Abstract: There is described a process for producing a free-rise polyurethane foam having a density of less than or equal to about 0.75 pcf. the process comprises the steps of: (a) contacting: (i) an isocyanate, (ii) a first polyol comprising a first polymer chain consisting essentially of propylene oxide units and alkylene oxide units selected from ethylene oxide, butylene oxide and mixtures thereof in a weight ratio of propylene oxide units to alkylene oxide units in the range of from about 90:10 to about 25:75, the polymer chain being terminally capped with the ethylene oxide units, the first polyol having a primary hydroxyl content of at least about 70% based on the total hydroxyl content of the first polyol, (iii) water (iv) a surfactant and (v) a catalyst to form a foamable reaction mixture; and (b) expanding the foamable reaction mixture to produce the free-rise polyurethane foam.

公开(公告)号：US20180243954A1

公开(公告)日：2018-08-30

申请号：US15756140

申请日：2016-08-30

Applicant: Proprietect L.P.

Inventor： Brian Beamish ,  Stephen T. McGrath ,  Kevin G. Kangas

IPC: B29C44/58

CPC classification number: B29C44/588 ,  B29C33/10 ,  B29K2075/00 ,  B29L2031/58

Abstract: There is described a mold comprising a first mold element and a second mold element releasingly engagable between an open position and a closed position to define a mold cavity in the closed position and a first part line between the first mold element and second mold element. The first mold element comprises a first mold portion and a second mold portion configured to be reversible separable with respect to one another to define a second part line therebetween disposed interiorly with respect to a periphery of the first part line. At least one vent is disposed in the second part line. In one embodiment, the at least one vent comprises a passageway configured to permit mold material in the mold cavity to enter but not to exit the passageway to cause at least partial curing of the mold material in the passageway.

公开(公告)号：US20170158411A1

公开(公告)日：2017-06-08

申请号：US15327245

申请日：2015-07-20

Applicant: PROPRIETECT L.P.

Inventor： Ghazwan TAKA ,  Darcy NETTLETON

IPC: B65D81/38 ,  F25D3/08

CPC classification number: B65D81/3834 ,  B65D81/3823 ,  B65D81/3827 ,  B65D81/383 ,  F25D3/08 ,  Y02W30/807

Abstract: Provided is a reusable composite container comprising a thermally insulating inner container fitted within a durable outer container. The outer container can also be thermally insulating. In preferred embodiments, the inner container comprises expanded polystyrene and the outer container comprises one or more of expanded polypropylene (EPP), EPS (Polystyrene), EPE (Polyethylene), PEPP (porous EPP) and PS/PE (Polystyrene/Polyethylene). The composite container can be used to ship temperature-sensitive payloads such as perishable goods.

公开(公告)号：US20150259459A1

公开(公告)日：2015-09-17

申请号：US14434247

申请日：2013-10-10

Applicant: PROPRIETECT L.P.

Inventor： Jing Zhang ,  Dorata Ulman

IPC: C08G18/08 ,  C08G18/76 ,  C08G18/48 ,  C08G18/20 ,  C08G18/18

CPC classification number: C08G18/14 ,  C08G18/1825 ,  C08G18/1833 ,  C08G18/2063 ,  C08G18/4883 ,  C08G18/6677 ,  C08G18/7621 ,  C08G18/7664 ,  C08G18/7671 ,  C08G2101/0008 ,  C08G2101/005 ,  C08G2101/0083

Abstract: There is described a process for producing a free-rise polyurethane foam having a density of less than or equal to about 0.75 pcf. the the process comprises the steps of: (a) contacting: (i) an isocyanate, (ii) a first polyol comprising a first polymer chain consisting essentially of propylene oxide units and alkylene oxide units selected from ethylene oxide, butylene oxide and mixtures thereof in a weight ratio of propylene oxide units to alkylene oxide units in the range of from about 90:10 to about 25:75, the polymer chain being terminally capped with the ethylene oxide units, the first polyol having a primary hydroxyl content of at least about 70% based on the total hydroxyl content of the first polyol, (iii) water (iv) a surfactant and (v) a catalyst to form a foamable reaction mixture; and (b) expanding the foamable reaction mixture to produce the free-rise polyurethane foam.

Abstract translation: 描述了一种生产密度小于或等于约0.75PCF的自由泡沫聚氨酯泡沫的方法。 该方法包括以下步骤：（i）使异氰酸酯，（ii）包含基本上由环氧丙烷单元组成的第一聚合物链和选自环氧乙烷，环氧丁烷及其混合物的环氧烷单元的第一多元醇 环氧丙烷单元与环氧烷单元的重量比在约90:10至约25:75的范围内，聚合物链被环氧乙烷单元末端封端，第一多元醇的伯羟基含量至少为 约70％，基于第一多元醇的总羟基含量，（iii）水（iv）表面活性剂和（v）形成可发泡反应混合物的催化剂; 和（b）使可发泡反应混合物膨胀以产生自由起泡聚氨酯泡沫。