US954310A - Process of producing acetyl-cellulose-coated material. - Google Patents

Process of producing acetyl-cellulose-coated material. Download PDF

Info

Publication number
US954310A
US954310A US252673A US1905252673A US954310A US 954310 A US954310 A US 954310A US 252673 A US252673 A US 252673A US 1905252673 A US1905252673 A US 1905252673A US 954310 A US954310 A US 954310A
Authority
US
United States
Prior art keywords
cellulose
acetyl
coated material
producing acetyl
action
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US252673A
Inventor
Leonhard Lederer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US252673A priority Critical patent/US954310A/en
Application granted granted Critical
Publication of US954310A publication Critical patent/US954310A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/24—Viscous coated filter

Definitions

  • This invention relates to the production of material, such as yarns, fabrics, paper and the like, also nexefactured cellulose, having a surface-coating of acetyl-eellulose, this being a divisional application of my application Serial No. 109,566, filed May 2%), 1902.-
  • the invention consists in the process hereinafter described, which comprises the steps of subjecting a body containing cellulose to the action of an acetylizing reaction-mixtur'e until a film of acetyl-cellulose is formed .upon the surface of the material, then discontinuing the action of the reaction mixture, and astly removing the acid by washing with water;
  • the invention consists further in the new product thus produced, said product consisting at its interior of cellulose or a body containing cellulose and having, a surfacefilm of acetyl-cellulose.
  • the bodies are then washed with water.
  • a fabric containing cellulose is immersed in acetic anhydrid to which about .5% sulfuric acid has been added, and allowed to remain in said solution for about ten ninutes.
  • the fabric thus provided with a more or less thick surface-coating of acetyl-cellulose is then removed from the solutlon and freed from the absorbed acid by Washing with Water.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

LEONHARD LEDERER, F SULZBACH-OBERFALZ,GERMANY.
PROCESS OF PRODUCING ACETYL-CELLULOSE-GOATED MATERIAL.
No Drawing. Original application filed May 29, 1902,
filed March 29, 1905.
' Acetyl-Cellulose-Coated Material, of which the following is a specification:
This invention relates to the production of material, such as yarns, fabrics, paper and the like, also nunuifactured cellulose, having a surface-coating of acetyl-eellulose, this being a divisional application of my application Serial No. 109,566, filed May 2%), 1902.-
The invention consists in the process hereinafter described, which comprises the steps of subjecting a body containing cellulose to the action of an acetylizing reaction-mixtur'e until a film of acetyl-cellulose is formed .upon the surface of the material, then discontinuing the action of the reaction mixture, and astly removing the acid by washing with water;
The invention consists further in the new product thus produced, said product consisting at its interior of cellulose or a body containing cellulose and having, a surfacefilm of acetyl-cellulose.
It is desirable for many urposes to partially aeetylize cellulose an bodies containing cellulose, such as yarn, fabrics, paper or the like, so that the particular object treated shall beprovided with a surface-layer con-- taiuing acetyl-c'ellulosc, while still containing at its interior unaltered cellulose. For obtaining this result, the cellulose or bodies containing cellulose are immersed in an acetylizing reaction-mixture and allowed to remain therein for a short time, so that an acetylization through the entire mass of cellulose cannot take place. The bodies so treated are thereby provided only with a thicker or thinner surface-film of acetylcellulose, according to the length of time during which they are subjected to the action Specification of Letters Eatent.
Patented Apr. 5, 1910. Serial No. 109,566. Divided and this application Serial No. 252,673.
of the reaction-mixture. The bodies are then washed with water. For instance, a fabric containing cellulose is immersed in acetic anhydrid to which about .5% sulfuric acid has been added, and allowed to remain in said solution for about ten ninutes. The fabric thus provided with a more or less thick surface-coating of acetyl-cellulose is then removed from the solutlon and freed from the absorbed acid by Washing with Water.
As examples of the application of the process may be mentioned the production of waterproof yarns and textile fabrics, imparting a gloss to fabrics, and the reparation and improvement of yarns ane fabrics before dyeing them. I
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The herein described process of producing acetyl-cellulose coated material, which consists in subjecting a body containing cellulose to the action of an acet lizingreaction-mixture until a film of acety -cellulose of the desired thlckness 1s formed there- 'on, then discontinuing theaction Lof said reaction mixture, and lastly removing the acid by washing with water.
2. The herein described process of prowhich consists in subjecting a body containing cellulose to the action of a solution of acetic unhydrid and sulfuric acid until a filln of acct l-cellulose of the desired thickness is forme thereon, then discontinuing the action of said solution, and then removing the acid by washing with water.
In testimony, that I claim the foregoing asmy invention, I vhave signed myname in presence of two subscribin witnesses.
LEONHART) LEDERER. Witnesses:
WALTHER D6111, OSCAR BOOK.
ducing acetyl-cellulose coated material,
US252673A 1902-05-29 1905-03-29 Process of producing acetyl-cellulose-coated material. Expired - Lifetime US954310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US252673A US954310A (en) 1902-05-29 1905-03-29 Process of producing acetyl-cellulose-coated material.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1902109566A 1902-05-29 1902-05-29
US252673A US954310A (en) 1902-05-29 1905-03-29 Process of producing acetyl-cellulose-coated material.

Publications (1)

Publication Number Publication Date
US954310A true US954310A (en) 1910-04-05

Family

ID=3022717

Family Applications (1)

Application Number Title Priority Date Filing Date
US252673A Expired - Lifetime US954310A (en) 1902-05-29 1905-03-29 Process of producing acetyl-cellulose-coated material.

Country Status (1)

Country Link
US (1) US954310A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417995A (en) * 1944-11-14 1947-03-25 Nasa Acetylation of lignocellulosic board materials
US5427852A (en) * 1993-07-09 1995-06-27 Rhone-Poulenc Rhodia Aktiengesellschaft Filter tow and method for its manufacture as well as tobacco smoke filter element and method for its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417995A (en) * 1944-11-14 1947-03-25 Nasa Acetylation of lignocellulosic board materials
US5427852A (en) * 1993-07-09 1995-06-27 Rhone-Poulenc Rhodia Aktiengesellschaft Filter tow and method for its manufacture as well as tobacco smoke filter element and method for its manufacture

Similar Documents

Publication Publication Date Title
US954310A (en) Process of producing acetyl-cellulose-coated material.
US625033A (en) James frederick hoyne
US1611056A (en) Process of making artificial sponges
US1546211A (en) Manufacture of products containing cellulose
US2147640A (en) Production of artificial materials
US2045161A (en) Cellulose acetate products and method of producing same
US1866153A (en) Partial saponification of cellulose ester material
US872097A (en) Process of bleaching cotton fibers.
US1028748A (en) Filaments and other products obtained from cellulose compounds.
GB407710A (en) Improvements in or relating to the production or treatment of artificial filaments, threads, yarns, ribbons and the like
US713936A (en) Process of glossing yarn.
US1274184A (en) Process of recovering waste products.
US3738805A (en) Method of producing purified asbestos structures
US1713289A (en) Process for the manufacture of threads, filaments, bands, or films of a polished and transparent nature, composed of plastic substances
US1704304A (en) Process of making cellulose ethers
US2903481A (en) Sulfur dioxide-acetic acid reaction product
US1709513A (en) Process of forming cellulose products
US1969454A (en) Artificial silk
US2112237A (en) Treatment of artificial filaments, yarns, foils, films and the like containing organic derivatives of cellulose
US1831101A (en) Treatment of materials consisting substantially of cellulose and the production of cellulose esters therefrom
US1128624A (en) Purified hydrated cellulose and method of manufacture.
US804191A (en) Process for manufacturing films or threads of cellulose.
US1034195A (en) Process for bleaching and treating flax fibers.
US583725A (en) Process of weighting silks
US1538294A (en) Process of nitrating regenerated cellulose films or paper