公开(公告)号：US3737398A

公开(公告)日：1973-06-05

申请号：US3737398D

申请日：1970-11-04

Applicant: YAMAGUCHI D

Inventor： YAMAGUCHI D

IPC: C08F8/28 ,  C08J9/00 ,  C08F27/20 ,  C08F29/26 ,  C08F47/08

CPC classification number: C08J9/0085 ,  C08F8/48 ,  C08J2329/14 ,  C08K7/02 ,  C08F8/28 ,  C08F16/06 ,  C08L29/14

Abstract: A SPONGEE BUFF SUITABLE FOR USE IN POLISHING OR FINISHING SURFACES OF STAINLESS STEELS, ALUMINUM AND OTHER METALS IS MADE BY REACTING POLYVINYL ALCOHOL WITH A LOWER ALDEHYDE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, ACETALDEHYDE AND BUTYRALDEHYDE, AND DIALDEHYDE STARCH AT A PH OF AT LEAST 1 IN THE PRESENCE OF AN ACIDIC CATALYST, SUITABLE FOAMING AGENT AND 20-70% BY WEIGHT BASED ON THE REACTION MIXTURE OF HEAT RESISTANT FIBERS, AND FORMING THE REACTION PRODUCED IN ANY DESIRED FORM.

公开(公告)号：US3445546A

公开(公告)日：1969-05-20

申请号：US3445546D

申请日：1966-12-29

Applicant: DU PONT

Inventor： PLEDGER JAMES THOMPSON JR

IPC: C08L23/06 ,  C08L23/08 ,  C08F29/30 ,  C08F29/26

CPC classification number: C08L23/0869 ,  C08L23/06 ,  C08L23/0853 ,  C08L2205/03 ,  C08L2666/02

公开(公告)号：US3442848A

公开(公告)日：1969-05-06

申请号：US3442848D

申请日：1967-03-08

Applicant: KURARAY CO

Inventor： SEZAKI JUNITI ,  HATTORI TATSUAKI ,  IKARI KYOICHIRO ,  IMOTO SABURO

IPC: C08K5/053 ,  C08L29/04 ,  C09D129/00 ,  D21H17/06 ,  D21H17/28 ,  D21H17/36 ,  D21H17/66 ,  C08F29/26 ,  C08F45/72 ,  C09K3/00

CPC classification number: D21H17/71 ,  C08K5/053 ,  D21H17/06 ,  D21H17/28 ,  D21H17/36 ,  D21H17/66 ,  C08L29/04

公开(公告)号：US3429845A

公开(公告)日：1969-02-25

申请号：US3429845D

申请日：1965-06-15

Applicant: DU PONT

Inventor： BECHTOLD MAX F ,  FAWCETT FRANK SHUMATE

IPC: C08L83/02 ,  C09D127/12 ,  C09D183/02 ,  C08F29/26 ,  C08F45/04

CPC classification number: C09D127/12 ,  C08L83/02 ,  C09D183/02 ,  Y10T428/263 ,  Y10T428/3154 ,  Y10T428/31544 ,  Y10T428/31797 ,  Y10T428/31913 ,  C08L2666/14 ,  C08L2666/04

公开(公告)号：US3882196A

公开(公告)日：1975-05-06

申请号：US44448274

申请日：1974-02-21

Applicant: KIMBERLY CLARK CO

Inventor： HANKE DAVID E

IPC: C08F8/50 ,  C08F29/26 ,  C08F29/30

CPC classification number: C08F8/50 ,  C08F2810/10 ,  C08F216/06

Abstract: Heat-degraded thermoformed water-soluble polyvinyl alcohol is rendered odor-free by mixing a proton acceptor with the polyvinyl alcohol before the polyvinyl alcohol is heatdegraded by a thermoforming operation.

Abstract translation: 在通过热成型操作对聚乙烯醇进行热降解之前，通过将质子受体与聚乙烯醇混合，使热降解的热成型水溶性聚乙烯醇变得无臭。

公开(公告)号：US3647528A

公开(公告)日：1972-03-07

申请号：US3647528D

申请日：1970-01-07

Applicant: DU PONT

Inventor： BARLOW DAVID O

IPC: C09D129/04 ,  D21H19/60 ,  D21H1/32 ,  C08F29/26

CPC classification number: D21H19/60 ,  C09D129/04 ,  C08L2666/54

Abstract: Polyvinyl alcohol having a 4 percent solution viscosity at 20* C. in the range of 7.5 to 16 centipoises is uniquely adapted to function as the sole pigment binder in paper coating colors and to improve the rheological properties thereof.

Abstract translation: 在20℃，在7.5-16厘泊范围内具有4％溶液粘度的聚乙烯醇，其独特的适用作为纸涂层颜色中的唯一颜料粘合剂并改善其流变性能。

公开(公告)号：US3591543A

公开(公告)日：1971-07-06

申请号：US3591543D

申请日：1969-06-09

Applicant: DU PONT

Inventor： STAFFORD EDWARD PHILIP

IPC: C09K17/00 ,  C08J9/30 ,  C08L29/00 ,  C08L29/02 ,  C09K17/20 ,  C09K17/48 ,  C09K103/00 ,  C08F29/26

CPC classification number: C08J9/30 ,  C08J2329/04 ,  C09K17/48

Abstract: METHOD OF GELLING POLYVINYL ALCOHOL AT CONTROLLED RATES WHICH COMPRISES MIXING AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF (A) WATER, (B) POLYVINYL ALCOHOL WHICH IS AT LEAST ABOUT 85 MOLE PERCENT HYDROLYZED AND HAS A MOLECULAR WEIGHT WHICH PROVIDES A HOEPPLER VISCOSITY OF ABOUT 4 TO 150 CENTIPOISIS IN AN AMOUNT SUFFICIENT TO PROVIDE A BROOKFIELD VISCOSITY OF AT LEAST 20 CENTIPIOSES, (C) A WATER-SOLUBLE CHROMIC SALT IN AN AMOUMT SUFFICIENT TO PROVIDE ABOUT 1 TO 100 PARTS OF CHROMIC ION PER 100 PARTS OF POLYVINYL ALCOHOL, AND (D) A WATER-SOLUBLE ORGANIC ACID SALT SELECTED FROM THE GROUP CONSISTING OF AMMONIUM, ALKALI METAL AND ALKALINE EARTH METAL SALTS OF ORGANIC ACIDS OF 1 TO 6 CARBON ATOMS IN AN AMOUNT SUFFICIENT TO PROVIDE ABOUT 0.05 TO 9 EQUIVALENTS OF ORGANIC ACID ANION PER EQUIVALENT OF CHROMIUM ION, WITH SUFFICIENT WATER-SOLUBLE STRONG ALKALINE MATERIAL TO PROVIDE A PH OF AT LEAST ABOUT 8 AND CAUSE GELATION OF SAID POLYVINYL ALCOHOL WITHIN 10 SECONDS TO 2 HOURS, THE RESULTING BASIC SOLUTION CONTAINING SUFFICIENT POLYVINYL ALCOHOL TO PROVIDE AN INITIAL BROOKFIELD VISCISOTY OF ABOUT 20 TO 400 CENTIPOISES. THIS METHOD OF GELATION IS PARTICULARLY USEFUL FOR SOIL STABILIZATION AND THE PREPARATION OF FILLED COMPOSITIONS AND FOAMS.

公开(公告)号：US3429846A

公开(公告)日：1969-02-25

申请号：US3429846D

申请日：1965-06-15

Applicant: DU PONT

Inventor： BECHTOLD MAX F ,  BRASEN WALLACE R

IPC: C08L83/02 ,  C09D127/12 ,  C09D183/02 ,  C08F29/26 ,  C08F45/04 ,  C09D3/78

CPC classification number: C09D127/12 ,  C08L83/02 ,  C09D183/02 ,  Y10T428/263 ,  Y10T428/3154 ,  Y10T428/31544 ,  Y10T428/31797 ,  Y10T428/31913 ,  C08L2666/14 ,  C08L2666/04

公开(公告)号：US3862916A

公开(公告)日：1975-01-28

申请号：US32930673

申请日：1973-02-05

Applicant: WORLD PATENT DEV CORP

Inventor： HAYWORTH CURTIS B

IPC: B41M7/00 ,  C08K5/13 ,  D21H25/18 ,  C08F29/26 ,  C08F45/24

CPC classification number: D21H25/18 ,  B41M7/0063 ,  C08K3/20 ,  C08K5/02 ,  C08K5/05 ,  C08K5/09 ,  C08K5/13 ,  C08L29/14

Abstract: A stable monophasic composition is here taught consisting of a solution of an antioxidant and copolymers of polyvinyl acetals in a solvent mixture containing a chlorinated hydrocarbon and an aqueous solution of a basic agent. The composition is useful for restoring and preserving papers and similar materials without discoloration.

Abstract translation: 这里教导了一种稳定的单相组合物，其包含抗氧化剂溶液和聚乙烯醇缩醛在含氯化烃和碱性水溶液的溶剂混合物中的共聚物。 该组合物可用于恢复和保存纸张和类似材料而不变色。

公开(公告)号：US3858379A

公开(公告)日：1975-01-07

申请号：US27402672

申请日：1972-07-21

Applicant: US ARMY

Inventor： GRAVES DAVID J ,  RITCHEY CHARLES R

IPC: A47C27/08 ,  A61G7/057 ,  A61G7/06 ,  C08F29/26 ,  C08F45/34

CPC classification number: A47C27/088 ,  A47C27/085 ,  A61G7/05738 ,  Y10S5/909

Abstract: A polyvinyl alcohol gel pad. The gel pad has properties which make it useful as a support pad in the prevention and treatment of decubitus ulcers (also known as pressure sores) and for other purposes. The polyvinyl alcohol gel is made by cross-linking high molecular weight polyvinyl alcohol using a cross-linking agent, such as formaldehyde, in the presence of an acid catalyst, such as hydrochloric acid, and by incorporating at least one internal plasticizer, such as propylene glycol, in the gel. The support pad is completed by putting a thin-film envelope around the gel. The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment to me of any royalty thereon.

Abstract translation: 聚乙烯醇凝胶垫。 凝胶垫具有使其用作预防和治疗褥疮溃疡（也称为压疮）和用于其它目的的支撑垫的性质。 聚乙烯醇凝胶通过在酸催化剂如盐酸的存在下使用交联剂如甲醛交联高分子量聚乙烯醇，并且通过引入至少一种内部增塑剂，例如 丙二醇，在凝胶中。 通过在凝胶上放置薄膜信封来完成支撑垫。