EP0920477A1 - Modified lignins - Google Patents
Modified ligninsInfo
- Publication number
- EP0920477A1 EP0920477A1 EP97938638A EP97938638A EP0920477A1 EP 0920477 A1 EP0920477 A1 EP 0920477A1 EP 97938638 A EP97938638 A EP 97938638A EP 97938638 A EP97938638 A EP 97938638A EP 0920477 A1 EP0920477 A1 EP 0920477A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lignin
- melt
- composition
- flow characteristics
- polyether
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L97/00—Compositions of lignin-containing materials
- C08L97/005—Lignin
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
- C07G99/00—Subject matter not provided for in other groups of this subclass
- C07G99/002—Compounds of unknown constitution containing sulfur
- C07G99/0022—Compounds of unknown constitution containing sulfur derived from hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
Definitions
- lignins There are substantial markets available to lignins if they can achieve the same melt and flow characteristics as a phenolic resin. There are at least two major factors of this present invention which allow these new modified lignins to be able to totally replace phenolic resins.
- the first factor that has been that a lignin which does not have any distinct melt point or flow characteristics can be modified with a certain amount of polyether glycol to achieve a certain desired melt point. So, what occurs is a certain ratio of lignin to a polyether compound (such as polyether glycol) produces a product which has a distinct melt point and melt viscosity. This effect can be thought of as a type of plasticizing effect wherein the lignin can be thought of as the hard resin.
- lignin is derived from wood, which is a natural product. As in all natural products there will exist a certain amount of variation depending on the exact type of wood, age and other conditions. These variations are another major reason why lignins have not been extensively utilized as replacements for phenolic resins, whereas a synthetic phenolic resin can be made to exact and reproducible specifications, and the lignin molecule may have wide variations. Therefore, if there is a variation in the lignin this can be adjusted by changing the ratio of lignin to a polyether compound (such as polyether glycol) in order to achieve the desired melt and flow characteristics.
- a polyether compound such as polyether glycol
- lignins are a natural product and as such there may be natural chemical variations in the lignin molecule. These variations may include different functional groups or different concentrations of these functional groups. These variations become rather significant when you are trying to formulate a product that must have, in addition to certain physical properties such as melt and flow, certain curing characteristics in order to produce a consistent product day in and day out.
- lignins can be used as either partial or total replacement of phenolic resins in phenolic production.
- One major advantage is that lignins can offer significant economic advantages. Since most phenolic resins are made from phenol and phenol is a petrochemical product, cost of phenol is very dependent on the cost of oil. So, as the cost of oil increases, the cost of phenol and phenolic resins will also increase. These price increases could make phenolic resins less competitive and thereby make it possible for these phenolic products to be replaced by other products.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2455896P | 1996-08-26 | 1996-08-26 | |
US24558P | 1996-08-26 | ||
PCT/US1997/015039 WO1998008903A1 (en) | 1996-08-26 | 1997-08-26 | Modified lignins |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0920477A1 true EP0920477A1 (en) | 1999-06-09 |
EP0920477A4 EP0920477A4 (en) | 1999-10-06 |
Family
ID=21821209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97938638A Withdrawn EP0920477A4 (en) | 1996-08-26 | 1997-08-26 | Modified lignins |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0920477A4 (en) |
JP (1) | JP2000517362A (en) |
AU (1) | AU4092497A (en) |
CA (1) | CA2262940C (en) |
WO (1) | WO1998008903A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6172204B1 (en) * | 1999-06-04 | 2001-01-09 | Regents Of The University Of Minnesota | Compositions based on lignin derivatives |
CN101265364B (en) * | 2007-07-27 | 2010-08-11 | 张国栋 | Thermoset plastics infiltration strengthened powdery plant fiber material and preparation method thereof |
JP2015519452A (en) * | 2012-06-01 | 2015-07-09 | ストラ エンソ オーワイジェイ | Dispersed composition containing lignin, process for its production and use thereof |
JP2019526694A (en) * | 2016-08-23 | 2019-09-19 | ナショナル リサーチ カウンシル オブ カナダ | Lignin pellet and method for producing the same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2192030A (en) * | 1935-12-12 | 1940-02-27 | Gen Electric | Process for the manufacture of a lignin-containing press mass |
US2156160A (en) * | 1938-05-17 | 1939-04-25 | Northwood Chemical Company | Lignin molding compound |
US3355400A (en) * | 1960-09-26 | 1967-11-28 | Union Carbide Corp | Polyether-lignin compositions |
US4833182A (en) * | 1986-09-29 | 1989-05-23 | Jim Walter Research Corp. | Isocyanate-polyester polyol binder for manufacture of cellulosic composites |
US5025046A (en) * | 1989-12-15 | 1991-06-18 | Kimberly-Clark Corporation | Creping adhesive composition |
ATE136317T1 (en) * | 1991-11-07 | 1996-04-15 | Ruetgerswerke Ag | LIGNIN-MODIFIED BINDER MIXTURES AND METHOD FOR THE PRODUCTION THEREOF |
US5614564A (en) * | 1993-07-28 | 1997-03-25 | Samsung General Chemicals Co., Ltd. | Degradable foam and the method for its production |
-
1997
- 1997-08-26 CA CA002262940A patent/CA2262940C/en not_active Expired - Fee Related
- 1997-08-26 EP EP97938638A patent/EP0920477A4/en not_active Withdrawn
- 1997-08-26 AU AU40924/97A patent/AU4092497A/en not_active Abandoned
- 1997-08-26 JP JP10511863A patent/JP2000517362A/en active Pending
- 1997-08-26 WO PCT/US1997/015039 patent/WO1998008903A1/en not_active Application Discontinuation
Non-Patent Citations (2)
Title |
---|
No further relevant documents disclosed * |
See also references of WO9808903A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2000517362A (en) | 2000-12-26 |
AU4092497A (en) | 1998-03-19 |
EP0920477A4 (en) | 1999-10-06 |
WO1998008903A1 (en) | 1998-03-05 |
CA2262940A1 (en) | 1998-03-05 |
CA2262940C (en) | 2003-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19990128 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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RIC1 | Information provided on ipc code assigned before grant |
Free format text: 6C 08L 97/02 A, 6C 07G 1/00 B, 6C 08K 13/00 B, 6C 08L 71/02 B, 6C 08L 67/00 B, 6C 08L 97/00 B, 6C 08L 97/00 J, 6C 08L 71:02 J |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19990823 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20030301 |