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Phase change inks containing crystalline trans-cinnamic diesters and polyterpene resins

A technology of trans-cinnamic acid ester and cinnamic acid diester, which is applied in the field of phase change ink composition, and can solve problems such as poor image firmness, image cracking, and poor scratch resistance

Inactive Publication Date: 2013-06-05
XEROX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many known phase change inks exhibit disadvantages such as poor adhesion to coated paper substrates, which results in poor scratch resistance, poor image robustness, hard and brittle properties, poor paper folding properties - such as cracked and crumpled images when the document is folded, and smudges on the back of the document
Furthermore, the non-polarity of these ink components often leads to compatibility issues with commonly available dyes and pigments, resulting in the need for more expensive or custom-designed colorants to ensure good solubility or dispersibility in the ink vehicle and Good long-term thermal stability to prevent colorant degradation or colorant migration
Additionally, many known phase change inks produce prints that are not receptive to pen writing

Method used

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  • Phase change inks containing crystalline trans-cinnamic diesters and polyterpene resins
  • Phase change inks containing crystalline trans-cinnamic diesters and polyterpene resins
  • Phase change inks containing crystalline trans-cinnamic diesters and polyterpene resins

Examples

Experimental program
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Effect test

preparation example Construction

[0071] ink preparation

[0072] The ink compositions can be prepared by any desired or convenient method. For example, the components of the ink vehicle may be mixed together and the mixture subsequently heated to at least its melting point. The colorant may be added before the ink composition is heated or after the ink composition is heated. The molten mixture can optionally be milled in an attritor, ball mill, or media mill, or subjected to high shear mixing to disperse the colorant in the ink vehicle. The heated mixture is then stirred to obtain a homogeneous molten ink, and the ink is then cooled to ambient temperature. The ink is solid at ambient temperature.

[0073] The nature of the ink

[0074] The melting and crystallization temperatures of phase change ink compositions can be determined by Differential Scanning Calorimetry (DSC) using, for example, a TA Instruments Q100 apparatus, using a temperature gradient of heating and cooling of 10°C per minute and between...

Embodiment I

[0113] Synthesis of Butane-1,4-trans-Cinnamate

[0114]

[0115]To a 500 mL three-neck round bottom flask equipped with a Dean-Stark trap and condenser, thermocouple and argon inlet was added trans-cinnamic acid (100 g, 674 mmol, purchased from Sigma-Aldrich), 1 , 4-butanediol (30.4 g, 337 mmol, purchased from Sigma-Aldrich) and FASCAT 4201 dibutyltin oxide catalyst (0.12 g, 0.1 wt%, purchased from Arkema Inc.). The mixture was heated slowly to 120°C under argon, during which time the trans-cinnamic acid melted. The temperature was then increased to 180°C and condensation started at about 150°C. The reaction mixture was stirred overnight (about 20 hours) at 180°C. Subsequently, vacuum (1-2 mmHg) was applied for about 20 minutes. A total of 5.3 ml of water was collected in the Dean-Stark trap. The reaction mixture was cooled to about 100°C under argon and drained into an aluminum pan and cooled to room temperature to yield 110 g of product as an off-white solid. The p...

Embodiment II

[0117] Synthesis of propane-1,3-trans-cinnamate

[0118]

[0119] The procedure of Example 1 was repeated except that 1,4-butanediol was replaced with 1,3-propanediol. T 熔融 (DSC)=89.9°C; T 结晶 (DSC) = 72°C (measured by DSC at 5°C / min).

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Abstract

Disclosed is a phase change ink comprising an ink carrier which comprises: (a) a crystalline trans-cinnamic diester; and (b) an amorphous polyterpene resin.

Description

[0001] Cross References to Related Applications [0002] Reference is made to U.S. Application 13 / 095,636, filed April 27, 2011, entitled "Solid Ink Compositions Comprising Crystalline-Amorphous Mixtures", and the identified inventors are Jennifer L. Belelie, Peter G. Odell, Stephan V. Drappel, Kentaro Morimitsu, Naveen Chopra, Marcel P. Breton, Gabriel Iftime, C. Geoffrey Allen, and Rina Carlini, the entire disclosures of which are incorporated herein by reference. [0003] With reference to U.S. application 13 / 196,157 filed on August 2, 2011, entitled "Phase Change Inks Containing Oxazoline Compounds and Polyterpene Resins", the inventors identified are Rina Carlini, Adela Goredema, Guerino G. Sacripante, Caroline M. Turek and Edward G. Zwartz, the entire disclosure of which is incorporated herein by reference. [0004] Reference is made to U.S. Patent Application 13 / 196,227, filed August 2, 2011, entitled "Phase Change Inks Containing Crystalline Trans-Cinnamic Diesters and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10
CPCC09D11/34C09D11/38C09D11/102C09D11/00C09D11/10B41M5/00
Inventor A·格雷德玛R·卡利尼C·M·图里克E·G·兹瓦兹
Owner XEROX CORP
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